These are Economics/Accounting Questions:

1. How much needs to be deposited att= 0 into a fund paying 4% compounded per period in order to withdraw $3000 att= 1, $1000 att= 3, and $850 att= 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.)