13. Problem 5.15 (Present Value of an Annulty) 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 $600 per year for 16 years at 12%. $300 per year for 8 years at 6%, $500 per year for 8 years at 0% $ d. Rework previous parts assuming they are annuities due. Present value of $600 per year for 16 years at 12%:$ Present value of $300 per year for 5 years at 6%: 5 Present value of $500 per year for 8 years at 0%:$