A $6,500 bond had a coupon rate of 5.50% with interest paid semi-annually. Mitchell purchased this bond when there were 8 years left to maturity and when the market interest rate was 5.75% compounded semi-annually. She held the bond for 4 years, then sold it when the market interest rate was 5.25% compounded semi-annually. a. Calculate the purchase price of the bond. b. Calculate the amount that Mitchell received when she sold the bond.