ack to Assignment Attempts Keep the Highest / 6 15. Problem 5.15 (Present Value of an Annuity) a. $800 per year for 12 years at 10%. $ b. $400 per year for 6 years at 5%. $ c. $300 per year for 6 years at 0%. d. Rework previous parts assuming they are annuities due. Present value of $800 per year for 12 years at 10% : $ Present value of $400 per year for 6 years at 5% : $ Present value of $300 per year for 6 years at 0% : $