(Compound interest) To what amount will the following investments accumulate? a. $5,000 invested for 10 years at 9 percent compounded annually b. $7,900 invested for 7 years at 7 percent compounded annually c. $790 invested for 12 years at 13 percent compounded annually d. $20,000 invested for 4 years at 4 percent compounded annually a. To what amount will $5,000 invested for 10 years at 9 percent compounded annually accumulate? (Round to the nearest cent.)