27. Problem 5.15 (Present Value of an Annuity) 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 10%. b. $300 per year for 8 years at 5%. c. $400 per year for 6 y+s at 0%. d. Rework previous parts assuming they are annuities due. [ Present value of $600 per year for 16 years at 10%: $ Present value of $300 per year for 8 years at 5% Present value of $400 per year for 6 years at 0%: $