My question is #3.21 please answer. thanks

per year compounded semiannual w mum selling price for the bonds? 20. You wish to purchase a $1,000 bond from a friend who needs the money There are 7 years remaining until the bond matures, and interest payments are quarterly. You decide to offer $750.08 for the bond because you want to earn exactly 16% per year compounded quarterly on the investment. What is the annual bond rate of interest? 21. Video Solution Leann just sold ten $1,000 par value bonds for $9,800. The bond coupon rate was 6% per year payable quarterly. Leann owned the bonds for 3 years. The first coupon payment she received was 3 months after she bought the bonds. She sold the bonds immediately after receiving her 12th coupon payment. Leann's yield on the bond was 12% per year compounded quarterly. Determine how much Leann paid when she purchased the bonds 22. Eight bonds were purchased for $8,628.16. They were kept for 5 years and coupon payments were received at the end of each of the 5 years. Imme- diately following receipt of the 5th coupon payment, the owner sells each bond for $62.50 more than its par value. The bond coupon rate is 8%, and ,ner's money wields a 10% annual return