Calculate Bond Prices for the following scenarios -Calculate the current yield for the following bond

a 15 year corporate bond issued 4 years ago with a 5% coupon rate and similar bonds today have 4% coupon rates.

-CBA corporation issued a 20 year bond 12 years ago paying 9%. What is the market price of the bond today with similar bonds paying 4.5%?

-A 30 year Treasury bond was issued 15 years ago (in 1996) paying 8.25%. 30 year T bonds today are paying 3.75%. What is the market value of the 1996 T bond?

-Calculate the YTM for the following corporate bond 6% coupon, 8 years left to maturity, market price = $1,105. show steps clearly