Crosshill Company's total overhead costs at various levels of activity are presented below. Month April May June July Machine Hours 65,000 55,000 75,000 81,000 Total Overhead Cost $190,000 $158,000 $303,000 $216,000 Assume that the overhead cost above consists of utilities, supervisory salaries, and maintenance. The breakdown of these costs at the 55,000-machine-hour level of activity in May is as follows Utilities (variable) Supervisory salaries (fixed) Maintenance (mixed) Total overhead cost $ 32,000 18,00 108,000 5258,000 The company wants to break down the maintenance cost into its variable and fixed cost elements Required: 1. Estimate how much of the $216,000 of overhead cost in July was maintenance cost (Hint To do this first determine how much of the $216.000 consisted of utilities and supervisory salaries Think about the behaviour of variable and fixed costs within the relevant range (Round the "Variable cost per unit" to 2 decimal places.) Maintenance cost in July 2. Using the high-low method, estimate a cost formula for maintenance (Round the "Variable cost per unit" to 2 decimal places.) Machine Hours Maintenance Cost High activity level Low activity level Change per MH Variable cost element Fixed cost element Y= 3. Express the company's total overhead cost in the form Y = a +bX (Round the "Variable cost per unit" 10 2 decimal places.) Variable Cost per Machine Hour Fixed Cost Utilities cost Supervisory salaries cost Maintenance cost Total overhead cost X 4. What total overhead cost would you expect to be incurred at an activity level of 70,000 machine-hours? (Round the "Variable cost per unit 10 2 decimal places.) Totalhes com