on december 31 spearmint, incorporated, issued $450,000 of 9 percent, 3-year bonds at a premium of $11,795. the bonds pay interest semiannually. spearmint uses the straight-line bond amortization method. the entry to record each interest payment includes a debit to bond interest expense for $18,284, a debit to premium on bonds payable for $1,966, and a credit to cash for $20,250.