Mittbama bought a coupon bond with 5 years to maturity at a price of 85 dollars. The bond has a face value of 100 dollars, and a 10% coupon rate. He sold the bond with 3 years to maturity to a bond dealer. (a) Suppose the dealer has a discount rate of 8%, what is the price he would pay for the bond? (b) Given the sale price of the bond, calculate Mittbama's rate of return. dont use excel.