Here is the formula that your going to need to use A=P(1+r/n)^nt So P=500, R=0.082, N=1, T=15 Plug it into your equation and you have A=500(1+0.082/1)^(1)(15) Simplify what's in the parenthesis A=500(1.082)^(1)(15) Multiply your exponents A=500(1.082)^15 Then A=500(3.26) Finally you multiply your last two numbers to get A=1,630 So after 15 years you would have $1,630 I hope this helped you :)