You observe the following US Treasury strip prices on zero-coupon bonds maturing 1, 2, 3 and 4 years from now. The price assumes principal payment of $100 at maturity a. Calculate the APR of each of these bonds, with annual compounding. b. What is the fair price of a 4-year coupon paying bond that makes payments of $50 at the end of the next three years and $1050 at the end of the 4^th year? c. What is the yield-to-maturity of the bond described in part (b)