Find the present value, using the present value formula and a calculator. (Round your answer to the nearest cent.) $ Achieve $225,500 at 8.15% compounded continuously for 8 years, 135 days.

Angela invested $15,000 in a savings account. If the interest rate is 4%, how much will be in the account in 10 years by each method of compounding? compound quarterly compound monthly compound continuously

Interest Ron Hampton needs to choose between two investments: One pays 6% compounded annually, and the other pays 5.9% compounded monthly. If he plans to invest 18,000 for 2 years, which investment should he choose? How much extra interest will he earn by making the better choice?

Rachael deposits $3,600 into a retirement fund each year. The fund earns 7.5% annual interest, compounded monthly. If she opened her account when she was 20 years old, how much will she have by the time she’s 55? How much of that amount was interest earned?