Nova Company's total overhead cost at varlous levels of actlvity are presented below: Assume that the total overhead cost above consists of utilites, supervisory salarles, and maintenance. The breakdown of these cost at the 36,000 machine-hour level of activity Is: Nova Company's management wants to break down the maintenance cost into its varlable and fixed cost elements. Required: 1. Estimate how much of the $246,180 of overhead cost in July was maintenance cost. (Hint to do this, It may be helpful to first determine how much of the $246,180 consisted of utilitles and supervisory salarles. Think about the behavior of varlable 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 actlvity level of 41,000 machine-hours? Complete this question by entering your answers in the tabs below. Estimate how much of the $246,180 of overhead cost in July was maintenance cost. (Hint: to do this, it may be helpful to first determine how much of the $246,180 consisted of utilities and supervisory salaries. Think about the behavior of variable and fixed costs.) (Do not round intermediate calculations.) Complete this question by entering your answers in the tabs below. Using the high-low method, estimate a cost formula for maintenance in the form Y=a+bX. (Do not round your intermediate calculations, Round the "Variable cost per machine hour" to 2 decimal places.) Complete this question by entering your answers in the tabs below. Express the company's total overhead cost in the form Y=a+bX. (Do not round your intermediate calculations. Round the "Variable cost per machine hour" to 2 decimal places.) Complete this question by entering your answers in the tabs below. What total overhead cost would you expect to be incurred at an activity level of 41,000 machine-hours? (Do not round intermediate calculations.)