These are Economics/Accounting Questions:How much needs to be deposited at ttt  = 0 into a fund paying 4% compounded per period in order to withdraw $3000 at t = 1, $1000 at  = 3, and $850 at  = 7 so that the fund is depleted at the last withdrawal? (Draw a cash flow diagram

These are Economics/Accounting Questions:How much needs to be deposited at ttt

1.  = 0 into a fund paying 4% compounded per period in order to withdraw $3000 at t = 1, $1000 at  = 3, and $850 at  = 7 so that the fund is depleted at the last withdrawal? (Draw a cash flow diagram.)

2. A loan of $2000 is to be paid off in 8 equal annual payments. The interest rate is 4% per year compounded annually. If the first payment is made at EOY 1, what is the annual payment? (Draw a cash flow diagram.)
3. For the previous problem, if the first payment is made at EOY 0, what is the annual payment? (Draw a cash flow diagram.)