diff --git a/lesson_06/expression/src/expression_calculator.ts b/lesson_06/expression/src/expression_calculator.ts
index 76b215c42..f37f2aaf1 100644
--- a/lesson_06/expression/src/expression_calculator.ts
+++ b/lesson_06/expression/src/expression_calculator.ts
@@ -2,10 +2,27 @@ export class ExpressionCalculator {
   /** Returns a calculation involving a, b, c, d, and e */
   calculate(a: number, b: number, c: number, d: number, e: number): number {
     // Implement your code here to return the correct value.
-    return 0;
+    // (a + b) * c / Math.pow(d, e)
+    const additionVariable = this.add(a, b);
+    const multiplicationVariable = this.multiply(additionVariable, c);
+    const powerVariable = this.pow(d, e);
+    const dividingVariable = this.divide(multiplicationVariable, powerVariable);
+    return dividingVariable;
+  }
+
+  add(a: number, b: number): number {
+    return a + b;
+  }
+
+  multiply(num1: number, num2: number): number {
+    return num1 * num2;
   }
 
   pow(base: number, exponent: number): number {
     return Math.pow(base, exponent);
   }
+
+  divide(a: number, b: number): number {
+    return a / b;
+  }
 }
diff --git a/lesson_06/quiz/src/lesson5.ts b/lesson_06/quiz/src/lesson5.ts
index 9ad62bd67..2497d755b 100644
--- a/lesson_06/quiz/src/lesson5.ts
+++ b/lesson_06/quiz/src/lesson5.ts
@@ -38,7 +38,7 @@ export class Lesson5 {
         [AnswerChoice.C, "To insert an image"],
         [AnswerChoice.D, "To create a paragraph"],
       ]),
-      AnswerChoice.UNANSWERED,
+      AnswerChoice.B,
     );
   }
 
@@ -52,7 +52,7 @@ export class Lesson5 {
         [AnswerChoice.C, "alt"],
         [AnswerChoice.D, "href"],
       ]),
-      AnswerChoice.UNANSWERED,
+      AnswerChoice.C,
     );
   }
 
@@ -66,7 +66,7 @@ export class Lesson5 {
         [AnswerChoice.C, "<div>"],
         [AnswerChoice.D, "<link>"],
       ]),
-      AnswerChoice.UNANSWERED,
+      AnswerChoice.B,
     );
   }
 
@@ -80,7 +80,7 @@ export class Lesson5 {
         [AnswerChoice.C, "<span>"],
         [AnswerChoice.D, "<br>"],
       ]),
-      AnswerChoice.UNANSWERED,
+      AnswerChoice.D,
     );
   }
 
@@ -94,7 +94,7 @@ export class Lesson5 {
         [AnswerChoice.C, "Computer Style Sheets"],
         [AnswerChoice.D, "Cascading System Sheets"],
       ]),
-      AnswerChoice.UNANSWERED,
+      AnswerChoice.B,
     );
   }
 
@@ -108,7 +108,7 @@ export class Lesson5 {
         [AnswerChoice.C, "text-color"],
         [AnswerChoice.D, "background-color"],
       ]),
-      AnswerChoice.UNANSWERED,
+      AnswerChoice.B,
     );
   }
 
@@ -122,7 +122,7 @@ export class Lesson5 {
         [AnswerChoice.C, "/* this is a comment */"],
         [AnswerChoice.D, "<!-- this is a comment -->"],
       ]),
-      AnswerChoice.UNANSWERED,
+      AnswerChoice.A,
     );
   }
 
@@ -136,7 +136,7 @@ export class Lesson5 {
         [AnswerChoice.C, "text-size"],
         [AnswerChoice.D, "text-style"],
       ]),
-      AnswerChoice.UNANSWERED,
+      AnswerChoice.UB,
     );
   }
 
@@ -150,7 +150,7 @@ export class Lesson5 {
         [AnswerChoice.C, "inline-block"],
         [AnswerChoice.D, "none"],
       ]),
-      AnswerChoice.UNANSWERED,
+      AnswerChoice.A,
     );
   }
 
@@ -164,7 +164,7 @@ export class Lesson5 {
         [AnswerChoice.C, "<stylesheet link='styles.css'>"],
         [AnswerChoice.D, "<css href='styles.css'>"],
       ]),
-      AnswerChoice.UNANSWERED,
+      AnswerChoice.A,
     );
   }
 }