I have correct all the mistakes

Author: Seti-Jemal

Sprint-1/1-key-exercises/1-count.js

@@ -4,3 +4,5 @@ count = count + 1;
 
 // line 1 makes box called count and puts 0 inside it.
 // line 3 adds 1 to count.
+//Line 3 is an increment operation because it increases the value of the variable count by 1.
+

Sprint-1/2-mandatory-errors/3.js

@@ -12,4 +12,4 @@ const last4Digits = cardNumber.slice(-4);
 // The code will not work because slice() cannot be used on numbers.
 // Slice() only works on strings or arrays.
 //We need to convert the number to string first 
-const last4Digits = cardNumber.to String().slice(-4);
+const last4Digits = cardNumber.toString().slice(-4);

Sprint-1/3-mandatory-interpret/1-percentage-change.js

@@ -2,12 +2,12 @@ let carPrice = "10,000";
 let priceAfterOneYear = "8,543";
 
 carPrice = Number(carPrice.replaceAll(",", ""));
-priceAfterOneYear = Number(priceAfterOneYear.replaceAll("," ""));
+priceAfterOneYear = Number(priceAfterOneYear.replaceAll(",", ""));
 
-const PriceDifference = carPrice - priceAfterOneYear;
-const PercentageChange = (PriceDifference / carPrice) * 100;
+const priceDifference = carPrice - priceAfterOneYear;
+const percentageChange = (priceDifference / carPrice) * 100;
 
-console.log(`The percentage change is ${PercentageChange}`);
+console.log(`The percentage change is ${percentageChange}`);
 
 // Read the code and then answer the questions below
 
@@ -23,8 +23,8 @@ Number(priceAfterOneYear.replaceAll(",", ""))
 // the error is comin from this line 
 
 priceAfterOneYear = Number(priceAfterOneYear.replaceAll("," ""));
-// the error happens becuae there is missing comma inside reaplaceAll().
-//The correct line should be 
+// The error happens because a comma is missing between the arguments in the replaceAll() function.
+// The correct line should be
 priceAfterOneYear = Number(priceAfterOneYear.replaceAll(",", ""));
 
 // c) Identify all the lines that are variable reassignment statements