help with 3 and 4

3) The following table summarizes prices of various default-free zero-coupon bonds (expressed as a percentage of face value): Maturity Price (per $100 face value) $94.51 $90.05 $84.68 $80.65 $74.31 a. Compute the yield to maturity for each bond. b. Plot the zero-coupon yield curve (for the first five years). c. Is the yield curve upward sloping, downward sloping, or flat? 4) For each of the following pairs of Treasury securities (each with $1000 par value), identify which will have the higher price: a. A four-year zero-coupon bond or a six-year zero coupon bond? b. A four-year zero-coupon bond or a four-year 5% coupon bond? e. A two-year 4% coupon bond or a two-year 5% coupon bond