Lavage Rapide owns and operates a large automatic car wash facility near Montreal. The following table provides estimates concerning the company$$s costs:

$$Fixed Cost per MonthCost per Car WashedCleaning supplies$$$ $0\mathrm{.}70$Electricity$ $1,500$$ $0\mathrm{.}09$Maintenance$$$ $0\mathrm{.}25$Wages and salaries$ $4,400$$ $0\mathrm{.}40$Depreciation$ $8,400$Rent$ $1,800$Administrative expenses$ $1,600$$ $0\mathrm{.}02$

For example, electricity costs should be $$1,500$ per month plus $$0\mathrm{.}09$ per car washed. The company actually washed $8,600$ cars in August and collected an average of $$6\mathrm{.}50$ per car washed. This average matches the budgeted revenue per car.