Please explain why and how the calculations work for each journal entry.

Bailey Brother's. Inc. issued exist250.000, 10-year bonds on January 1, 2012. a. Prepare the necessary journal entry to record the issuance of the bonds assuming they were issued at face value. b. Prepare the necessary journal entry to record the issuance of the bonds assuming they were issued at 105. c. Prepare the necessary journal entry to record the issuance of the bonds assuming they were issued at 97. d. Assuming the bonds had a stated interest rate of 3% and paid interest annually on December 31 of each year, prepare the necessary journal entry to record the December 31, 2012 interest payment. Prepare the necessary journal entries to record the situations noted above