PROBLEM 2-21 High-Low Method; Predicting Cost [LO3, LO4] Golden Company's total overhead cost at various levels of activity are presented below: Assume that the overhead cost above consists of utilitics, supervisory salaries, and maintenance: The breakdown of these costs at the 40.000 machine-hour level of activity is as follows: The company wants to break down the ruggizenunts cout into its yirtable and fixed cost elements. Required: 1. Ectimate how much of the 524t,e00 of ouchicesd cost in Jume bas maintenance cost. (Hint: To do this, it may he helplul to firit determine hoss math of the $241,600 consived of wilities and supervisory salaries. Think abwatt the beharnor of warable and rived cosis wrethin the relevant range.) 2. Using the high-tow method, ectimate t cost fomula ror trainfen ante: 3. Express the compan'? todal onethens s4nd in the form Y=a+DX 4. What total overhead cos woull yeif cyper to he ineumed as an activity letel of 45.000 machine-hours