Find the present values of these ordinary annuities. Discounting occurs once a year. Do not round Intermediate calculations. Round your o answers to the nearest cent. o a. $200 per year for 10 years at 4%. b. $100 per year for 5 years at 2%. C. $900 per year for 5 years at 0%. d. Rework previous parts assuming they are annuities due. Present value of $200 per year for 10 years at 4%:$ Present value of $100 per year for 5 years at 2%:$ Present value of $900 per year for 5 years at 0%: $