I am having problems with exercise 14

Stanford issue bonds dated January 1, 2015, with a par value of $500,000. The bonds annual contrast rate is 9% and interest is paid semiannually on June 30 and the December 31. The bonds mature in three years. The annual market rate at the date of issuance is 12% and the bonds are sold for $463,140. what is the amount of the discount on these bonds at issuance? how much total bond interest expense will be recognized over the life of these bonds? prepare an amortization table like the one in Exhibit 10B. 1 for these bonds; use the effective interest method to amortize the discount. Quarto Co, issues bonds dated January 1, 2015 with a par value of $400,000. The bonds' annual contrast rate is 13% and interest is paid semiannually on June 30 and December 31. The bonds mature in three years. The annual market rate at the date of issuance is 12% and the bonds are sold for $409,850 what is the amount of the premium on these bonds at issuance? How much total bond interest expense will be recognized over the life of these bonds? prepare an amortization table like the one in Exhibit 10B.2 for these bonds? for these bonds; use the effective interest method to amortize the premium. Duval Co. issues four-years bonds with a $100,000 par value on June 1, 2015, at a price of $95,948. The annual contract rate is 7% and interest is paid semiannually on November 30 and may 31. prepare an amortization table like the one in Exhibit 10.7 for these bonds. Use the straight-line method of interest amortization. prepare journal entries tg record the first two interest payments and to accrue interest as f December 31, 2015 on may 1, 2015, Brussels Enterprises issue bonds dated January 1, 2015 that have a $3,400,000 par value mature in 20 years, and pay 9% interest semiannually on June 30 and December 31. The bonds are sold at par plus four months accrued interest