Book Print erences Nova Company's total overhead cost at various levels of activity are presented below. Month April Total Overhead Cost $182,600 Machine-Hours 48,000 38,000 $ 160,100 58,000 68,000 $ 205,100 $ 227,600 May June July Assume that the total overhead cost above consists of utilities, supervisory salaries, and maintenance. The breakdown of these costs at the 38,000 machine-hour level of activity is: Utilities (variable) Supervisory salaries (fixed) Maintenance (mixed) Total overhead cost $ 45,600 62,000 52,500 $ 160,100 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 $227,600 of overhead cost in July was maintenance cost. (Hint to do this, it may be helpful to first determine how much of the $227,600 consisted of utilities and supervisory salaries. Think about the behavior of variable and fixed costs) 2. Using the high-low method, estimate a cost formula for maintenance in the form Y=a+bX 3. Express the company's total overhead cost in the form Y=a+bX 4. What total overhead cost would you expect to be incurred at an activity level of 43,000 machine-hours? Complete this question by entering your answers in the tabs below. Required 1 Required 2 Required 3 Required Using the high-low method, estimate a cost formula for maintenance in the form Ya + bx. (Do not round your intermediate calculations. Round the "Variable cost per unit" to 2 decimal places.)