The code I have put together isnt wokring. please help!

a. Create a web app to calculate future value. Do this problem only. Do not do other equations. You must use a loop and not the built-in power function. 2.a.i. Hint: The equation for present value is: FV PV x (1 + r)t 2.a.ii. Hint: Use three input boxes, one for PV, for r, and for t 2.a.iii. Hint: you know how to calculate Yx using loops, which is similar to (1+r)t Calculate that and multiply by PV. b. Name this app futurevalue.html