Roadside Travel Court was organized on July 1, 2016 by Betty Johnson. Betty is a good manager

Question:

Roadside Travel Court was organized on July 1, 2016 by Betty Johnson. Betty is a good manager but a poor accountant. From the trial balance prepared by a part-time bookkeeper Betty prepared the following income statement for her fourth quarter, which ended June 30, 2017.

Betty suspected that something was wrong with the statement because net income had never exceeded $30,000 in anyone quarter. Knowing that you arc an experienced accountant, she asks you to review the income statement and other data.
You first look at the trial balance. In addition to the account balances reported above in the income statement, the trial balance contains the following additional selected balances at June 30. 2017.
Supplies............................$ 8,200
Prepaid Insurance.................14,400
Notes Payable.....................14,000
You then make inquiries and discover the following.
1. Roadside rental revenues include advanced rental payments received for summer occupancy, in the amount of $57,000.
2. There was $1,800 of supplies on hand at June 30.
3. Prepaid insurance resulted from the payment of a 1 -year policy on April 1.2017.
4. The mail in July 2017 brought the following bills: advertising for the week of June 24, $110; repairs made June 18, $4,450; and utilities for the month of June. $215
5. Wage expense is $300 per day. At June 30, 4 days' wages have been incurred but not paid.
6. The note payable is a 6% note dated May 1,2017, and due on July 31, 2017.
7. Income tax of $ 13,400 for the quarter is due in July but has not yet been recorded.
Instructions
(a) Prepare any adjusting journal entries required at June 30, 2017.
(b) Prepare a correct income statement for the quarter ended June 30. 2017.
(c) Explain to Betty the generally accepted accounting principles that she did not recognize in preparing her income statement and their effect on her results.