diff --git a/lesson_06/expression/src/expression_calculator.ts b/lesson_06/expression/src/expression_calculator.ts
index 13cb2ca05..b44957b98 100644
--- a/lesson_06/expression/src/expression_calculator.ts
+++ b/lesson_06/expression/src/expression_calculator.ts
@@ -1,11 +1,33 @@
+
+
+
 export class ExpressionCalculator {
   /** Returns the calculation of ((a + b) * c) / d^e */
   calculate(a: number, b: number, c: number, d: number, e: number): number {
     // Implement your code here to return the correct value.
-    return 0;
+  const sum = this.add(a,b)
+  const product = this.multiply(sum,c)
+  const exponent = this.pow(d,e)
+  const result = this.divide(product,exponent)
+  return result;
   }
 
-  pow(base: number, exponent: number): number {
+   pow(base: number, exponent: number): number {
     return Math.pow(base, exponent);
   }
+
+  add(a: number, b: number): number {
+    return(a+b);
+  }
+
+  multiply(a: number, b: number): number{
+    return(a*b);
+  }
+
+  divide(a:number, b:number): number{
+    return(a/b);
+  }
+
+
+ 
 }