Hello, can you please provide me with a detailed solution to this problem. How was the actual level of activity determined?

Auto Lavage is a Canadian company that owns and operates a large automatic carwash facility near Quebec. The following table provides data concerning the company's costs: Cost per Fixed Cost per Month Car Washed Cleaning supplies $ 0.70 Electricity $ 1,400 0.10 Maintenance 0.30 Wages and salaries 4,700 0.40 Depreciation 8,300 Rent 2,100 Administrative expenses 1,800 0.05 The company expects to charge customers an average of $5.90 per car washed. Required: Using Exhibit 9-3Q as your guide, prepare a flexible budget for October assuming either 8,000 or 9,000 cars are washed