Final answer:
To record the payment of semi-annual interest on the bonds issued, debit the interest expense account and credit the cash account. For the amortization of the premium, debit the interest expense account and credit the premium on bonds payable account. Use the straight-line method to calculate the amortization.
Step-by-step explanation:
To record the journal entries for the payment of semi-annual interest on the bonds issued, you would debit the interest expense account for the amount of interest due and credit the cash account for the same amount. For the amortization of the premium for six months, you would debit the interest expense account for the amortized amount and credit the premium on bonds payable account for the same amount. The amortization can be calculated using the straight-line method by dividing the premium by the number of interest periods.