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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. $1,000 per year for 14 years at 8%. $ b. $500 per year for 7 years at 4%. 5 c. $400 per year. for 7 years at 0%. 5 d. Rework previous parts assuming they are annuities due. Present value of $1,000 per year for 14 years at 8%:$ Present value of $500 per year for 7 years at 4%:$ Present value of $400 per year for 7 vears at 0%:$