Can someone show me how to do this with the excel formula, please? All my calculations are wrong.

Check My Work 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. $500 per year for 16 years at 12%. $ 2615.2 b. $250 per year for 8 years at 6%. C. $1,000 per year for 8 years at 0%. $ 8000 d. Rework previous parts assuming they are annuities due. Present value of $500 per year for 16 years at 12%: $ Present value of $250 per year for 8 years at 6%:$ Present value of $1,000 per year for 8 years at 0%:$ Hide Feedback Partially Correct Check My Work