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. $1,000 per year for 6 years at 10%. $ b. $500 per year for 3 years at 5%. $ c. $500 per year for 6 years at 0%. $ d. Rework parts a, b, and c assuming they are annuities due. Future value of $1,000 per year for 6 years at 10%:$ Future value of $500 per year for 3 years at 5%: $ Future value of $500 per year for 6 years at 0%: $ Find the present values of these ordinary annuities. Discounting occurs once a year. Do not round intermediate calculations. Round your answers to the nearest cent. a. $600 per year for 12 years at 4%. $ b. $300 per year for 6 years at 2%. $ c. $900 per year for 16 years at 0%. $ d. Rework previous parts assuming they are annuities due. Present value of $600 per year for 12 years at 4%: $ Present value of $300 per year for 6 years at 2%: $ Present value of $900 per year for 16 years at 0%: $