I need solve this

Abdullah has his own Auto Shop and produces one type of service. He spends 250 KD a month to rent a building for his company, 450 KD a month for renting the equipment, and 8 KD for one hour of work. Abdullah produced 90 services this month at a price of 15 KD. He has used 50 working hours. Calculate: 1. Abdullah's fixed cost 2. Abdullah's total cost of producing 90 services 3. Abdullah's revenue when he sold 90 services 4. Abdullahs average total cost when he sold 90 services