diff --git a/index.js b/index.js
index 294f6b2..5d531d4 100644
--- a/index.js
+++ b/index.js
@@ -8,10 +8,10 @@ const s4 = "bread";
 const s5 = "and";
 
 // Concatenate the string variables into one new string
-
+const concatSN = s1 + " " + s2 + " " + s3 +  " " + s4 + " " + s5;
 
 // Print out the concatenated string
-
+console.log(concatSN);
 
 
 
@@ -22,12 +22,16 @@ const part1 = "java";
 const part2 = "script";
 
 // Convert the last letter of part1 and part2 to uppercase and concatenate the strings
-
+const convertP1 = part1.slice(0, 3) + part1.charAt(3).toUpperCase();
+// console.log(convertP1);
+const convertP2 = part2.slice(0, 5) + part2.charAt(5).toUpperCase();
+// console.log(convertP2);
 
 // Print the cameLtaiL-formatted string
+const convP1P2 = convertP1 + convertP2;
+console.log(convP1P2);
 
-
-
+ 
 
 /*******************************************
     Iteration 2.1 | Calculate Tip
@@ -35,10 +39,10 @@ const part2 = "script";
 const billTotal = 84;
 
 // Calculate the tip (15% of the bill total)
-
+const tipTot = billTotal * 0.15;
 
 // Print out the tipAmount
-
+console.log(tipTot);
 
 
 
@@ -47,9 +51,10 @@ const billTotal = 84;
 *******************************************/
 
 // Generate a random integer between 1 and 10 (inclusive)
-
+const randomInt = Math.floor(Math.random() * 10) + 1;
 
 // Print the generated random number
+console.log(randomInt);
 
 
 
@@ -62,15 +67,29 @@ const b = false;
 
 // Try and guess the output of the below expressions first and write your answers down:
 const expression1 = a && b;
+// False
+console.log(expression1);
 
 const expression2 = a || b;
+// True
+console.log(expression2);
 
 const expression3 = !a && b;
+// False
+console.log(expression3);
 
 const expression4 = !(a && b);
+// True
+console.log(expression4);
 
 const expression5 = !a || !b;
+// True
+console.log(expression5);
 
 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