Question 3 (of 3) 10.00 points Nova Company's total overhead cost at various levels of activity are presented below: MonthMachine-Hours Total Overhead Cost April May June July 51,000 41,000 61,000 71,000 $221,150 $194,650 $247,650 $274,150 Assume that the total overhead cost above consists of utities, supervisory salaries, and maintenance. The machine-hour level of activity is: Utilities (variable) Supervisory salaries (fixed) Maintenance (mixed) 57,400 68,000 69,250 Total overhead cost $194,650 Nova Company's management wants to break down the maintenance cost into its variable and fixed cost elements