Betty Morrow operates Cullumber Riding Academy, Inc. The academys primary sources of revenue are riding fees and lesson fees, which are provided on a cash basis. Betty also boards horses for owners, who are billed monthly for boarding fees. In a few cases, boarders pay in advance of expected use. For its revenue transactions, the academy maintains these accounts: Cash, Accounts Receivable, Unearned Service Revenue, and Service Revenue. The academy owns 10 horses, a stable, a riding corral, riding equipment, and office equipment. These assets are accounted for in the following accounts: Horses, Buildings, and Equipment. The academy employs stable helpers and an office employee, who receive weekly salaries. At the end of each month, the mail usually brings bills for advertising, utilities, and veterinary service. Other expenses include feed for the horses and insurance. For its expenses, the academy maintains the following accounts: Supplies, Prepaid Insurance, Accounts Payable, Salaries and Wages Expense, Advertising Expense, Utilities Expense, Maintenance and Repairs Expense, Supplies Expense, and Insurance Expense. Bettys sole source of personal income is dividends from the academy. Thus, the corporation declares and pays periodic dividends. To account for stockholders equity in the business and dividends, two accounts are maintained: Common Stock and Dividends. During the first month of operations, an inexperienced bookkeeper was employed. Betty asks you to review the following eight entries of the 50 entries made during the month. In each case, the explanation for the entry is correct.

May 1		Cash		15,300
		Unearned Service Revenue				15,300
		(Issued common stock in exchange for $15,300 cash)
5		Cash		260
		Service Revenue				260
		(Received $260 cash for lesson fees)
7		Cash		510
		Service Revenue				510
		(Received $510 for boarding of horses beginning June 1)
9		Supplies Expense		1,530
		Cash				1,530
		(Purchased estimated 5 months supply of feed and hay for $1,530 on account)
14		Equipment		80
		Cash				800
		(Purchased desk and other office equipment for $800 cash)
15		Salaries and Wages Expense		410
		Cash				410
		(Issued check to Betty Morrow for personal use)
20		Cash		148
		Service Revenue				157
		(Received $157 cash for riding fees)
31		Maintenance and Repairs Expense		75
		Accounts Receivable				75
		(Received bill of $75 from carpenter for repair services performed)

Answer the following.

(a1)

For each journal entry that is correct, so state.

Date
May	1		select between correct and incorrect IncorrectCorrect
May	5		select between correct and incorrect IncorrectCorrect
May	7		select between correct and incorrect CorrectIncorrect
May	9		select between correct and incorrect IncorrectCorrect
May	14		select between correct and incorrect CorrectIncorrect
May	15		select between correct and incorrect CorrectIncorrect
May	20		select between correct and incorrect CorrectIncorrect
May	31

May 31 correct or incorrect