consider a tencashflow annuity, with the first $800 cash flow occurring at t = 9 years and the tenth $800 cash flow occurring 18 years from today.

(1) Specifically using ten singlesum (singlecashflow) equations and a discount rate of 4%/year, calculate the value of this annuity 9 years from now.

(2) Specifically using a PVofannuity equation and a discount rate of 4%/year, calculate the value of this same annuity nine years from now.

(3) Specifically using nothing but Excels prepackaged PV function and a discount rate of 4%/year, calculate the value of this same annuity 9 years from today.