12. Problem 5.14 (Future Value of an Annuity) eBook Find the future values of these ordinary annuities. Compounding occurs once a year. Do not round intermediate calculations. Round your answers to the nearest cent. a. $500 per year for 10 years at 8%. $ b. $250 per year for 5 years at 4%. $ c. $1,000 per year for 5 years at 0%. $ d. Rework parts a, b, and c assuming they are annuities due. Future value of $500 per year for 10 years at 8%: $ Future value of $250 per year for 5 years at 4%: $ Future value of $1,000 per year for 5 years at 0%: $