Answer:
1. Determine the price at which the bonds were issued and the amount that ATC received at issuance.
Since the bond's coupon rate was 10% and the market interest rate was also 10%, then the bonds should have been sold at face value = $500,000 and that is the amount that ATC should have received.
2.&3. Prepare the required journal entries to record the bond issuance and the first interest payment on December 31 assuming no interest has been accrued earlier in the year.
January 1, bonds were issued:
Dr Cash 500,000
Cr Bonds payable 500,000
January 31, coupon is paid:
Dr Interest expense - bonds payable 50,000
Cr Cash 50,000