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Crosshill Company's total overhead costs at various levels of activity are presented below: Total Machine Overhead Month Hours Cost April 43,000 $217,240 May 38,000 $189,940 June 58,000 $244,540 July 68,000 $271,840 Assume that the overhead cost above consists of utilities, supervisory salaries, and maintenance. The breakdown ofthese costs at the 38,000machinehour level of activity in May is as follows: Utilities (variable) $ 57,000 Supervisory salaries (fixed) 67,000 Maintenance (mixed) 65,940 Total overhead cost $ 159,940 The company wants to break down the maintenance cost into its variable and xed cost elements. 3. Express the company's total overhead cost in the form V: a + bX. (Do not round your intermediate calculations. Round the "Variable cost per unit" to 2 decimal places.) Supervisory salaries cost _ Total overhead cost $ 0.00 _ 4. What total overhead cost would you expect to be incurred at an activity level of 43,000 machine-hours? (Do not round intermediate calculations.) _:|