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 16%. b. $200 per year for 4 years at 8%. c. $300 per year for 4 years at 0%. d. Rework parts a,b, and c assuming they are annuities due. Future value of $400 per year for 8 years at 16%:$ Future value of $200 per year for 4 years at 8%:$ Future value of $300 per year for 4 years at 0%:$