Crosshill Company's total overhead costs at various levels of activity are presented below: Total Overhead Month Machine-Hours Cost April 70, 000 $202, 800 May 60, 000 $181, 200 June 80, 000 $224, 400 July 90, 000 $246, 000 Assume that the overhead cost above consists of utilities, supervisory salaries, and maintenance. The breakdown of these costs at the 60,000-machine-hour level of activity in May is as follows: Utilities (variable) $ 52, 800 Supervisory salaries (fixed) 21, 000 Maintenance (mixed) 107, 400 Total overhead cost $181, 200 The company wants to break down the maintenance cost into its variable and fixed cost elements.3. Express the company's total overhead cost in the form Y: a + bX. [Round the "Variable cost per unit\" to 2 decimal places.) Supervisory salaries cost Maimenancewst Total overhead cost 4. What total overhead cost would you expect to be incurred at an activity level of 75'000 machinehours? {Round the "Variable cost per unit" to 2 decimal places.} :|