answers to the nearest cent. a. $600 per year for 10 years at 12%. $ (3) b. $300 per year for 5 years at 6%. $ (3) c. $600 per year for 5 years at 0%. a d. Now rework parts a,b, and c assuming that payments are made at the beginning of each year; that is, they are annuities due. Present value of $600 per year for 10 years at 12% Present value of $300 per year for 5 years at 6%:$ Present value of $600 per year for 5 years at 0%:$