Lavage Rapide is a Canadian company that owns and operates a large automatic car wash facility near Montreal. The following table provides data concerning the company's costs:

$\backslash$table$[[$i$,\backslash$table$[[$Fixed Cost$],[$per Month$]],\backslash$table$[[$Cost per$],[$Car Washed$]]],[$Cleaning supplies,,$$0\mathrm{.}40$