please solve

Doug Maltbee \& his friend formed a lawn service business. To start the business on 1May, they issued 100 shares of stocks for $1,000 and deposited it in a new bank account in the name of the company : Maltbee Lawn Services Inc.. The $1,000 consisted of a $600 loan from their parents and $400 of their own money. The company rented lawn equipment, purchased supplies, and hired fellow students to mow and trim its customer's lawns. At the end of each month, Maltbee mailed bills to its customers. On August 31 , they decided to dissolve (stop) the business and return to University for the next semester. As they were so busy, they kept few records other than the company's check book and a list of amounts owed to by customers. On 31 August, the company's check book showed a balance of $2,090, and customers still owe Maltbee $800. During the summer $4,150 were collected from customers. Records show that payments for supplies totaled $200, and those on hand at Aug 31 were $60. Payments made to employees for salaries were $1,200, and amounts still owed to employees were $200 for the final week of the summer. expanses S/p Maltbee rented some equipment from Scholes Machine Shop. On 1 May, a six-month rent agreement was signed for mowing equipment and paid $750 for the full rent period. Scholes will refund the unused portion of the prepayment if the equipment is in good shape. In order to get the refund, Maltbee has kept the mowers in excellent condition. In fact, it had to pay $300 to repair a mower. To transport employees and equipment to jobs, Maltbee used a trailer that was bought for $450. The summer's work used up one-third of the trailer's service potential. The business check book lists a payment of $160 for cash distributions to Doug \& his friend during the summer Required divile dey=33% 1. Determine the amount of revenue earned during the four months of operation ended Aug 31. 2. Determine the salaries expense for the four months ended Aug 31 . 3. Determine the amount of refund that Maltbee is entitled to at Aug 31 with respeet to the equipment rented from Seholes on May 1. 4. Determine the book value of the trailer on Aue 31