Q$.$ No$.3$: AirQual Test Corporation provides on$-$site air quality testing services. The company has provided the following cost formulas and actual results for the month of February:

$\backslash$table$[[,\backslash$table$[[$Fixed Component$],[$per Month$]],\backslash$table$[[$Variable$],[$Component per Job$]],\backslash$table$[[$Actual Total$],[$for February$]]],[$Revenue$,,$$$360,$$$18,9$