6-14 Three years ago, Jack's Automotive Jacks issued a 20-year callable bond with a $1,000 maturity value and an 8.5 percent coupon rate of interest. Interest is paid semiannually. The bond is currently selling for $1,046. (a) What is the bond's yield to matu- rity? (b) If the bond can be called in four years for a redemption price of $1,089, what is the bond's yield to call? 9.0001