Posted by jane on Friday, July 20, 2012 at 1:22pm.
suppose you invest some money in an account at 6% compounded monthly, after four years you have $8000, how much interest did you earn

calculus  Reiny, Friday, July 20, 2012 at 4:27pm
x(1.005)^48 = 8000
solve for x
subtract from 8000 to get the interest.