An IBM bond has 11 years until maturity, a coupon rate of 8%, a par value of $1,000 and sells for $1,150. a. If coupon payments are made semi-annually, what is the yield to maturity for the bond? b. What is the coupon yield on the bond? c. If you sell it after 1 year and interest rates have increased to 7.5%, what return do you earn?