14. Problem 5.14 (Future Value of an Annuity) 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. $400 per year for 8 years at 8%. $ b. $200 per year for 4 years at 4%. $ c. $500 per year for 4 years at 0%. $ d. Rework parts a, b, and c assuming they are annuities due. Future value of $400 per year for 8 years at 8% : $ Future value of $200 per year for 4 years at 4% : $ Future value of $500 per year for 4 years at 0% : $