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 10%. b. $400 per year for 7 years at 5%. c. $1,000 per year for 7 years at 0% d. Rework previous parts assuming they are annulties due. Present value of $800 per year for 14 years at 10%:$ Present value of $400 per year for 7 years at 5%: $ Present value of $1,000 per year for 7 years at 0%:$