9-22. Interpreting Relations Between Bond Price, Coupon, Yield, and Rating In January 2017, Microsoft Corporationissued \$17 billion of bonds in seven parts, with maturities ranging from 2020 to 2057 . The bond issue was rated Aaa by Moody's. Two of the bond offerings are described below. Amount: $4 billion; Maturity: February 6, 2027; Coupon: 3.3\%; Price: 99.31; Yield: 3.383\%. Amount: $2 billion; Maturity: February 6, 2057; Coupon: 4.5\%; Price: 99.49 ; Yield: 4.528%. a. Discuss the relation between the coupon rate, issuance price, and yield for the 2027 issue. b. Compare the yields on the two bond issues. Why are the yields different when the bond ratings are the same