Please answer both if you can, it would help me out greatly. Thank you so much for your help in advance.

4. A debt of $3000 due in five years, $4000 due in seven years and $7000 due in 12 years is to be repaid by $2000 due in 2 years, $5000 due in 4 years, and a final payment due in nine years. Determine this payment if the interest rate is 8% compounded monthly 5. Assuming an interest rate of 10% compounded mouthly, find the net present value of the cash flows for an initial investment of $30,000 and tell if the investment is profitable. Year Cash Flow $10,000 $15,000 $12.000 6 $8,000