(8) Suppose you purchased a 20 -year, 10 percent coupon (semiannual payments) bond at par. You plan to sell the bond in two years. You expect that 18-year bonds with similar characteristics (e.g., default risk) would yield 12 percent at the end of two years. Calculate the expected realized yield on this bond by assuming that each coupon payment is rinvested at the following rates: the 1 st coupon at 8% p.a. for 18 months; the 2 nd coupon at 10% p.a. for 12 months; the 3rd coupon at 12% p.a. for 6 months; and the 4th coupon not reinvested. (9) Find the duration of an 6% coupon bond making semiannual coupon payments with a par value of $1,000 if it has three years until maturity and a 10% yield to maturity. (10) When the market interest rate was 6 percent, you purchased a 10-year, 8 percent coupon (semiannual coupon payments) bond with a Macaulay duration of 7.29 years. The par value of this bond is $1,000. If the market interest rate decreases by 50 basis points from the previous level, what is the percentage change in the bond's price using the duration concept