Jack Hammer Company completed the following transactions during 2009. The annual accounting period ends December 31, 2009.

Apr. 30	Received $550,000 from Commerce Bank after signing a 2-year, 6 percent interest-bearing note payable.
June 6	Purchased merchandise on account at a cost of $75,000.
July 15	Paid for the June 6 purchase.
Aug. 31	Signed contract to provide security service to a small apartment complex and collected six months' fees in advance amounting to $12,000. (Use the account Unearned Service Revenue.)