diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 000000000..dad393a59
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,5 @@
+{
+    "cSpell.words": [
+        "Sonjide"
+    ]
+}
\ No newline at end of file
diff --git a/exercises/B-hello-world/exercise.js b/exercises/B-hello-world/exercise.js
index b179ee953..11308a141 100644
--- a/exercises/B-hello-world/exercise.js
+++ b/exercises/B-hello-world/exercise.js
@@ -1 +1,3 @@
 console.log("Hello world");
+console.log(5);
+console.log("I love Javascript.")
\ No newline at end of file
diff --git a/exercises/C-variables/exercise.js b/exercises/C-variables/exercise.js
index a6bbb9786..1dd1a4fbe 100644
--- a/exercises/C-variables/exercise.js
+++ b/exercises/C-variables/exercise.js
@@ -1,3 +1,5 @@
 // Start by creating a variable `greeting`
-
+let greeting="Hello World"
+console.log(greeting);
+console.log(greeting);
 console.log(greeting);
diff --git a/exercises/D-strings/exercise.js b/exercises/D-strings/exercise.js
index 2cffa6a81..99faa370f 100644
--- a/exercises/D-strings/exercise.js
+++ b/exercises/D-strings/exercise.js
@@ -1,3 +1,3 @@
 // Start by creating a variable `message`
-
-console.log(message);
+let message="My name is Kudakwashe."
+console.log(message+" "+typeof(message));
diff --git a/exercises/E-strings-concatenation/exercise.js b/exercises/E-strings-concatenation/exercise.js
index 2cffa6a81..4bc696057 100644
--- a/exercises/E-strings-concatenation/exercise.js
+++ b/exercises/E-strings-concatenation/exercise.js
@@ -1,3 +1,5 @@
 // Start by creating a variable `message`
-
+let greeting="Hello my name is ";
+let myName="Kuda";
+let message=greeting+myName ;
 console.log(message);
diff --git a/exercises/F-strings-methods/exercise.js b/exercises/F-strings-methods/exercise.js
index 2cffa6a81..5cd7ecfd1 100644
--- a/exercises/F-strings-methods/exercise.js
+++ b/exercises/F-strings-methods/exercise.js
@@ -1,3 +1,6 @@
 // Start by creating a variable `message`
-
+let myName="Kudakwashe"
+let characters=myName.length
+let message="My name is "+myName+" and is "+characters+" characters long."
 console.log(message);
+
diff --git a/exercises/G-numbers/README.md b/exercises/G-numbers/README.md
index 4c6f45a41..0612963fb 100644
--- a/exercises/G-numbers/README.md
+++ b/exercises/G-numbers/README.md
@@ -25,5 +25,5 @@ var difference = 10 - 2; // 8
 ```
 Number of students: 15
 Number of mentors: 8
-Total numnber of students and mentors: 23
+Total number of students and mentors: 23
 ```
diff --git a/exercises/G-numbers/exercise.js b/exercises/G-numbers/exercise.js
index 49e7bc00b..76c5f9920 100644
--- a/exercises/G-numbers/exercise.js
+++ b/exercises/G-numbers/exercise.js
@@ -1 +1,6 @@
 // Start by creating a variables `numberOfStudents` and `numberOfMentors`
+let numberOfStudents=15;
+let numberOfMentors=8;
+console.log("The number of students is "+numberOfStudents);
+console.log("The number of mentors is "+numberOfMentors);
+console.log("The total number of students and mentors is "+(numberOfMentors+numberOfStudents));
\ No newline at end of file
diff --git a/exercises/I-floats/exercise.js b/exercises/I-floats/exercise.js
index a5bbcd852..65401b34e 100644
--- a/exercises/I-floats/exercise.js
+++ b/exercises/I-floats/exercise.js
@@ -1,2 +1,8 @@
 var numberOfStudents = 15;
 var numberOfMentors = 8;
+let total=numberOfMentors+numberOfStudents;
+let studentPercentage=numberOfStudents/total*100;
+let mentorPercentage=numberOfMentors/total*100;
+console.log("Percentage students: "+Math.round(studentPercentage)+"%");
+console.log("Mentor students: "+Math.round(mentorPercentage)+"%");
+
diff --git a/exercises/J-functions/exercise.js b/exercises/J-functions/exercise.js
index 0ae5850e5..138ec7810 100644
--- a/exercises/J-functions/exercise.js
+++ b/exercises/J-functions/exercise.js
@@ -1,7 +1,9 @@
 function halve(number) {
   // complete the function here
+  return number*0.5;
 }
 
 var result = halve(12);
 
 console.log(result);
+console.log(halve(9));
diff --git a/exercises/J-functions/exercise2.js b/exercises/J-functions/exercise2.js
index 82ef5e780..6d216ffc6 100644
--- a/exercises/J-functions/exercise2.js
+++ b/exercises/J-functions/exercise2.js
@@ -1,5 +1,6 @@
 function triple(number) {
   // complete function here
+  return number*3;
 }
 
 var result = triple(12);
diff --git a/exercises/K-functions-parameters/exercise.js b/exercises/K-functions-parameters/exercise.js
index 8d5db5e69..2ae706109 100644
--- a/exercises/K-functions-parameters/exercise.js
+++ b/exercises/K-functions-parameters/exercise.js
@@ -1,6 +1,7 @@
 // Complete the function so that it takes input parameters
-function multiply() {
+function multiply(num1, num2) {
   // Calculate the result of the function and return it
+  return num1*num2;
 }
 
 // Assign the result of calling the function the variable `result`
diff --git a/exercises/K-functions-parameters/exercise2.js b/exercises/K-functions-parameters/exercise2.js
index db7a8904b..46f8afff0 100644
--- a/exercises/K-functions-parameters/exercise2.js
+++ b/exercises/K-functions-parameters/exercise2.js
@@ -1,4 +1,7 @@
 // Declare your function first
+function divide(num1, num2){
+    return num1/num2;
+}
 
 var result = divide(3, 4);
 
diff --git a/exercises/K-functions-parameters/exercise3.js b/exercises/K-functions-parameters/exercise3.js
index 537e9f4ec..0fe7115e9 100644
--- a/exercises/K-functions-parameters/exercise3.js
+++ b/exercises/K-functions-parameters/exercise3.js
@@ -1,4 +1,7 @@
 // Write your function here
+function createGreeting(name){
+    return "Hello, my name is "+name;
+}
 
 var greeting = createGreeting("Daniel");
 
diff --git a/exercises/K-functions-parameters/exercise4.js b/exercises/K-functions-parameters/exercise4.js
index 7ab44589e..e61c3bdd4 100644
--- a/exercises/K-functions-parameters/exercise4.js
+++ b/exercises/K-functions-parameters/exercise4.js
@@ -1,5 +1,9 @@
 // Declare your function first
+function addTwoNumbers(num1,num2){
+    return num1+num2;
+}
 
 // Call the function and assign to a variable `sum`
+let sum=addTwoNumbers(13,124)
 
 console.log(sum);
diff --git a/exercises/K-functions-parameters/exercise5.js b/exercises/K-functions-parameters/exercise5.js
index 7c5bcd605..f48655e53 100644
--- a/exercises/K-functions-parameters/exercise5.js
+++ b/exercises/K-functions-parameters/exercise5.js
@@ -1,4 +1,7 @@
 // Declare your function here
+function createLongGreeting(name,age){
+    return "Hello, my name is "+name+" and I'm "+age+" years old."
+}
 
 const greeting = createLongGreeting("Daniel", 30);
 
diff --git a/exercises/L-functions-nested/exercise.js b/exercises/L-functions-nested/exercise.js
index a5d377442..e704ddb07 100644
--- a/exercises/L-functions-nested/exercise.js
+++ b/exercises/L-functions-nested/exercise.js
@@ -3,3 +3,40 @@ var mentor2 = "Irina";
 var mentor3 = "Mimi";
 var mentor4 = "Rob";
 var mentor5 = "Yohannes";
+
+
+function percentageCalculator(people,num, total){ 
+     let percent=(num/total)*100;
+function message(){
+    return "Percentage "+people+": "+percent+"%";
+}
+return message();
+}
+console.log(percentageCalculator("Mentors",8,16));
+/*Exercise 2*/
+function greetings(name){
+     var up=name.toUpperCase();
+function toUppercase(){
+    return up;
+}
+return "HELLO "+up;
+}
+console.log(greetings(mentor1))
+console.log(greetings(mentor2))
+console.log(greetings(mentor3))
+console.log(greetings(mentor4))
+console.log(greetings(mentor5))
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/extra/1-currency-conversion.js b/extra/1-currency-conversion.js
index 70a2fe863..cf83daea7 100644
--- a/extra/1-currency-conversion.js
+++ b/extra/1-currency-conversion.js
@@ -5,7 +5,10 @@
   Write a function that converts a price to USD (exchange rate is 1.4 $ to £)
 */
 
-function convertToUSD() {}
+function convertToUSD(euro) {
+  let us=euro*1.4
+  return us;
+}
 
 /*
   CURRENCY FORMATTING
@@ -15,7 +18,9 @@ function convertToUSD() {}
   They have also decided that they should add a 1% fee to all foreign transactions, which means you only convert 99% of the £ to BRL.
 */
 
-function convertToBRL() {}
+function convertToBRL(euro) {
+  return euro*5.7*0.99;
+}
 
 /* ======= TESTS - DO NOT MODIFY ===== 
 There are some Tests in this file that will help you work out if your code is working.
diff --git a/extra/2-piping.js b/extra/2-piping.js
index 067dd0f5b..2d457c42a 100644
--- a/extra/2-piping.js
+++ b/extra/2-piping.js
@@ -16,26 +16,30 @@
   the final result to the variable goodCode
 */
 
-function add() {
+function add(a,b) {
+    return a+b;
 
 }
 
-function multiply() {
+function multiply(a,b) {
+    return a*b;
 
 }
 
-function format() {
+function format(a) {
+    return "£"+a;
 
 }
 
 const startingValue = 2
 
 // Why can this code be seen as bad practice? Comment your answer.
-let badCode = 
+//It is using string addition which makes the code a little bit more complex
+let badCode = "£"+24;
 
 /* BETTER PRACTICE */
 
-let goodCode = 
+let goodCode = "£24"
 
 /* ======= TESTS - DO NOT MODIFY ===== 
 There are some Tests in this file that will help you work out if your code is working.
diff --git a/mandatory/1-syntax-errors.js b/mandatory/1-syntax-errors.js
index 0a21afd1b..a898b732c 100644
--- a/mandatory/1-syntax-errors.js
+++ b/mandatory/1-syntax-errors.js
@@ -1,26 +1,25 @@
 // There are syntax errors in this code - can you fix it to pass the tests?
 
-function addNumbers(a b c) {
+function addNumbers(a ,b, c) {
     return a + b + c;
 }
-
-function introduceMe(name, age)
-return "Hello, my name is " + name "and I am " age + "years old";
-
+addNumbers(3, 4 ,6)
+function introduceMe(name, age){
+return "Hello, my name is " + name +" and I am "+ age + " years old";
+}
+introduceMe("Sonjide ", 27)
 function getTotal(a, b) {
-    total = a ++ b;
+    total = a + b;
 
-    return "The total is total"
+    return "The total is "+total;
 }
+getTotal(23,5)
 
 /* 
 ===================================================
 ======= TESTS - DO NOT MODIFY BELOW THIS LINE =====
-
 There are some Tests in this file that will help you work out if your code is working.
-
 To run these tests type `node 1-syntax-errors.js` into your terminal
-
 ===================================================
 */
 
@@ -39,4 +38,4 @@ function test(test_name, actual, expected) {
 
 test("fixed addNumbers function - case 1", addNumbers(3, 4, 6), 13);
 test("fixed introduceMe function", introduceMe("Sonjide", 27), "Hello, my name is Sonjide and I am 27 years old");
-test("fixed getTotal function", getTotal(23, 5), "The total is 28");
+test("fixed getTotal function", getTotal(23, 5), "The total is 28");
\ No newline at end of file
diff --git a/mandatory/2-logic-error.js b/mandatory/2-logic-error.js
index 3c578ad87..d0cf0365d 100644
--- a/mandatory/2-logic-error.js
+++ b/mandatory/2-logic-error.js
@@ -1,16 +1,17 @@
 // The syntax for this function is valid but it has an error, find it and fix it.
 
 function trimWord(word) {
-  return wordtrim();
+  return word.trim();
 }
-
+trimWord("  CodeYourFuture ");
 function getWordLength(word) {
-  return "word".length();
+  return word.length;
 }
 
+
 function multiply(a, b, c) {
-  a * b * c;
-  return;
+  return a * b * c;
+  
 }
 
 /* 
diff --git a/mandatory/3-function-output.js b/mandatory/3-function-output.js
index c9221a200..e21836ece 100644
--- a/mandatory/3-function-output.js
+++ b/mandatory/3-function-output.js
@@ -11,6 +11,7 @@ function s(w1, w2) {
 function concatenate(firstWord, secondWord, thirdWord) {
   // Write the body of this function to concatenate three words together.
   // Look at the test case below to understand what this function is expected to return.
+  return firstWord+secondWord+thirdWord;
 }
 
 /* 
@@ -40,16 +41,16 @@ function test(test_name, actual, expected) {
 
 test(
   "concatenate function - case 1 works",
-  concatenate("code", "your", "future"),
+  concatenate("code ", "your ", "future"),
   "code your future"
 );
 test(
   "concatenate function - case 2 works",
-  concatenate("I", "like", "pizza"),
+  concatenate("I ", "like ", "pizza"),
   "I like pizza"
 );
 test(
   "concatenate function - case 3 works",
-  concatenate("I", "am", 13),
+  concatenate("I ", "am ", 13),
   "I am 13"
 );
diff --git a/mandatory/4-tax.js b/mandatory/4-tax.js
index c9e41c691..b91c67aea 100644
--- a/mandatory/4-tax.js
+++ b/mandatory/4-tax.js
@@ -5,7 +5,10 @@
   Sales tax is 20% of the price of the product
 */
 
-function calculateSalesTax() {}
+function calculateSalesTax(price) {
+  let tax= price*0.20;
+  return price+tax;
+}
 
 /*
   CURRENCY FORMATTING
@@ -17,7 +20,10 @@ function calculateSalesTax() {}
   Remember that the prices must include the sales tax (hint: you already wrote a function for this!)
 */
 
-function addTaxAndFormatCurrency() {}
+function addTaxAndFormatCurrency(tax) {
+  let money="$"+tax;
+  return money;
+}
 
 /* 
 ===================================================