661.56
To find this, use the equation A = Pe^rt.
A being the final answer, P being principle or initial, r being rate, and t being time.
Set it up as so: A = 500e^.04x7
Once put into the calculator, it should pop out the answer as given above.
Hope this helps!
you will use the formula I=PRT
500*0.04*7=140
after 7 years it will be 640
