Pls explain using BA2 plus calculator functions

LO1 46 Suppose you are going to receive $7,800 per year for five years. The appropriate discount rate is 7.5 Calculating Annuities Due percent a. What is the present value of the payments if they are in the form of an ordinary annuity? What is the present value if the payments are an annuity due? b. Suppose you plan to invest the payments for five years. What is the future value if the payments are an ordinary annuity? What if the payments are an annuity due? c. Which has the higher present value, the ordinary annuity or annuity due? Which has the higher future value? Will this always be true