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Crosshill Company's total overhead costs at various levels of activity are presented below: Assume that the overhead cost above consists of utlities, supervisory salaties, and maintenance. The breakdown of these costs at the 60,000-machine-hour level of activity in May is as follows: The company wants to break down the maintenance cost into its varlable and fixed cost elements. Required: 1. Estimate how much of the $246,000 of overhead cost in July was maintenance cost. (Hint To do this, first determine how much of the $246,000 consisted of utilities and supervisory salaries. Think about the behaviour of vatiable and fixed costs within the relevant range) (Round the "Variable cost per unit" to 2 decimal ploces.) 2. Using the high-low method, estimate a cost formula for maintenance. (Round the "Voriable cost per unit" to 2 decimal places.) 3. Express the company's total overhead cost in the form Y=a+bX. (Round the "Voriable cost per unit" to 2 decimal ploces.) 4. What total overhead cost would you expect to be incurred at an activity level of 75,000 machine-hours? (Round the "Variable cost per unit" to 2 decimal ploces.) Crosshill Company's total overhead costs at various levels of activity are presented below: Assume that the overhead cost above consists of utlities, supervisory salaties, and maintenance. The breakdown of these costs at the 60,000-machine-hour level of activity in May is as follows: The company wants to break down the maintenance cost into its varlable and fixed cost elements. Required: 1. Estimate how much of the $246,000 of overhead cost in July was maintenance cost. (Hint To do this, first determine how much of the $246,000 consisted of utilities and supervisory salaries. Think about the behaviour of vatiable and fixed costs within the relevant range) (Round the "Variable cost per unit" to 2 decimal ploces.) 2. Using the high-low method, estimate a cost formula for maintenance. (Round the "Voriable cost per unit" to 2 decimal places.) 3. Express the company's total overhead cost in the form Y=a+bX. (Round the "Voriable cost per unit" to 2 decimal ploces.) 4. What total overhead cost would you expect to be incurred at an activity level of 75,000 machine-hours? (Round the "Variable cost per unit" to 2 decimal ploces.)