Wickers Restoration Services had the following transactions on May. 1. Received $48,000 from sale of common stock.
2. Paid rent on office for the month, $880.
3. Purchased supplies on account, $1,750.
4. Earned fees, receiving cash, $12,600.
5. Paid creditor on account, $1,000.
6. Paid automobile expenses for month, $375, and miscellaneous expenses, $250.
7. Paid office salaries for the month, $3,900.
8. Earned fees which the customer will pay next month, $2,400.
9. Determined that the cost of supplies used was $280.
10. Paid dividends, $2,400.

Speedy auto repairs uses a job-order costing system. the company’s direct materials consist of replacement parts installed in customer vehicles, and its direct labor consists of the mechanics’ hourly wages. speedy’s overhead costs include various items, such as the shop manager’s salary, depreciation of equipment, utilities, insurance, and magazine subscriptions and refreshments for the waiting room. the company applies all of its overhead costs to jobs based on direct labor-hours. at the beginning of the year, it made the following estimates: direct labor-hours required to support estimated output 20,000 fixed overhead cost $ 350,000 variable overhead cost per direct labor-hour $ 1.00 required: 1. compute the predetermined overhead rate. 2. during the year, mr. wilkes brought in his vehicle to replace his brakes, spark plugs, and tires. the following information was available with respect to his job: direct materials $ 590 direct labor cost $ 109 direct labor-hours used 6