A 30 -year maturity bond with face value of $1,000 makes semiannual coupor payments and has a coupon rate of 8.40%. Note: Do not round intermediate calculations. Enter your answers as a percent rounded to 3 decimal places. a. What is the yield to maturity if the bond is selling for $1,020 ? b. What is the yield to maturity if the bond is selling for $1,000 ? c. What is the yield to maturity if the bond is selling for $1,130