E eBook 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. $800 per year for 14 years at 4%. $ b. $400 per year for 7 years at 2%. $ C. $900 per year for 7 years at 0%. $ d. Rework previous parts assuming they are annuities due. Present value of $800 per year for 14 years at 4%: $ Present value of $400 per year for 7 years at 2%:$ Present value of $900 per year for 7 years at 0%:$