diff --git a/index.js b/index.js
index 294f6b2..630c56a 100644
--- a/index.js
+++ b/index.js
@@ -7,6 +7,10 @@ const s3 = "Ted";
 const s4 = "bread";
 const s5 = "and";
 
+
+const tongueTwister = s1 +" " + s2 +" " + s3 + " " +s4 +  " " + s5 + " " +s3 + " " + s2 + " " + s1 + " " + s4;
+console.log(tongueTwister)
+
 // Concatenate the string variables into one new string
 
 
@@ -21,6 +25,26 @@ const s5 = "and";
 const part1 = "java";
 const part2 = "script";
 
+let lastWord = part1[part1.length - 1].toUpperCase();
+let lastWord2 = part2[part2.length - 1].toUpperCase();
+
+const newPart1 = part1.slice(0, part1.length - 1) + lastWord;
+const newPart2 = part2.slice(0, part2.length - 1) + lastWord2;
+
+
+
+console.log(newPart1 + newPart2)
+
+
+
+// const result = part1 + " " + part2
+// console.log(result)
+
+
+
+
+
+
 // Convert the last letter of part1 and part2 to uppercase and concatenate the strings
 
 
@@ -33,6 +57,8 @@ const part2 = "script";
     Iteration 2.1 | Calculate Tip
 *******************************************/
 const billTotal = 84;
+let tip =( 15/100 ) * billTotal
+console.log(tip)
 
 // Calculate the tip (15% of the bill total)
 
@@ -61,16 +87,23 @@ const a = true;
 const b = false;
 
 // Try and guess the output of the below expressions first and write your answers down:
-const expression1 = a && b;
+const expression1 = a && b;  //false
+console.log(expression1)
 
-const expression2 = a || b;
+const expression2 = a || b; //true
+console.log(expression2)
 
-const expression3 = !a && b;
+const expression3 = !a && b;  // false
+console.log(expression3)
 
-const expression4 = !(a && b);
+const expression4 = !(a && b); // true
+console.log(expression4)
 
-const expression5 = !a || !b;
+const expression5 = !a || !b;   //true
+console.log(expression5)
 
-const expression6 = !(a || b);
+const expression6 = !(a || b); // false
+console.log(expression6)
 
-const expression7 = a && a;
\ No newline at end of file
+const expression7 = a && a; // true
+console.log(expression7)
\ No newline at end of file