MathAlgebraQ&A LibraryMAT150 Unit 3 Review **no need to show f(g(x)) = g(f(x)) = x Find f(x) for the following functions: 52) f(x) = (2x +1)5 53) Compound interest is cal culated using the formula below: A = P (1+12 Where A is the future value, P is present value, and t is the number of years for the loan/investment. a) If you invest $1,000 at 9% interest for 8 years, what is the future value of the investment? b) If you want to have $2,500 for a vacation in 3 years, how much should you invest today if you can get 10% on the investment? c) If you borrow $500 at 12% interest, how long will it take for the amount you owe to double?

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