21 and 22 please

21. Bond Yields Bart Software has 5.7 percent coupon bonds on the market with 22 years to maturity. The bonds make semiannual payments and currently sell for 97 percent of par. What is the current yield? The YTM? The effective annual yield? 22. Bond Yields BDJ Co. wants to issue new 25-year bonds for some much-needed expansion projects. The company currently has 4.8 percent coupon bonds on the market that sell for $1,028, make semiannual payments, have a $1,000 par value, and mature in 25 years. What coupon rate should the company set on its new bonds if it wants them to sell at par