What is the value of each of the following bond issues? Calculate Interest expense in each case. (a) 10% bond of $50,000 sold on the bond issue date; 10-year life, interest payable semi-annually, sold at face value. (b) 9% bond of $200,000 sold on bond issue date; 20-year life, interest payable semi-annually, sold at $110 (c) 6% bond of $100,000 sold at $96 on bond issue date; 15-year life.