value 4.00 points Dwomoa Group of Companies total overhead cost at various levels of activity are presented below. Machine-Hours Total Overhead Cost 0 April May June 49,000 39,000 59,000 69,000 $170,720 $220,320 $245,120 Assume that the total overhead cost above consists of utilities, supervisory salaries, and maintenance. The breakdown of these costs at the 39,000 machine-hour level of activity is: Utilities (variable) Supervisory salaries (fixed) Maintenance (mixed) 54,600 57,000 59,120 Total overhead cost $170,720 Dwomoa Group of Companies, management wants to break down the maintenance cost into its variable and fixed cost elements. Required