a. Compute the future value of $1,000 compounded annually for 20 years at 9 percent. (Do not round intermediate calculations and round your final answer to 2 decimal places. (e.g., 32.16)) b. Compute the future value of $1,000 compounded annually for 15 years at 12 percent. (Do not round intermediate calculations and round your final answer to 2 decimal places. (e.g., 32.16)) c. Compute the future value of $1,000 compounded annually for 25 years at 9 percent. (Do not round intermediate calculations and round your final answer to 2 decimal places. (e.g., 32.16))