Need help with steps solved in the following problem for 1-4, thank you .

or incorrect for the work you have completed so far. It does not indicate Month April May June July Machine Hours 47,000 37,600 57,000 67,000 Total Overhead Cost $ 192,240 $ 169,040 $ 215,440 $ 238,640 Assume that the total overhead cost above consists of utilities, supervisory salarles, and maintenance. The breakdown of these costs at the 37,000 machine hour level of activity is: Utilities (variable) Supervisory salaries (fixed) Maintenance (mixed) Total overhead cost $ 44,400 67,000 57,640 $169,040 Nova Company's management wants to break down the maintenance cost into its variable and fixed cost elements. Required: 1. Estimate how much of the $238,640 of overhead cost in July was maintenance costant to do this, it may be helpful to first determine how much of the $238.640 consisted of utilities and supervisory salaries. Think about the behavior of variable and fed costs) 2. Using the high-low method, estimate a cost formula for maintenance in the form Ya+bX 3. Express the company's total overhead cost in the form Y=2+bx 4. What total overhead cost would you expect to be incurred at an activity level of 42,000 machine hours? Molled o