E$6\mathrm{.}4($LO $3,4)($Computation of Future Values and Present Values$)$ Using the appropriate inter$-$

est table, answer the following questions. $($Each case is independent of the others.$)$

a$.$ What is the future value of $20$ periodic payments of $$4,000$ each made at the beginning of each pe$-$

riod and compounded at $8\%?$

b$.$ What is the present value of $$2,500$ to be received at the beginning of each of $30$ periods, discounted

at $5\%$ compound interest?

c$.$ What is the future value of $15$ deposits of $$2,000$ each made at the beginning of each period and

compounded at $10\%?($Future value as of the end of the fifteenth period.$)$

d$.$ What is the present value of six receipts of $$1,000$ each received at the beginning of each period,

discounted at $9\%$ compounded interest?