S. A company's total overhcad cost at various levels of activity is presented below Total Overhead Cost $21.750 $19,000 $25,000 $28.750 Moeth Machine-Hours 3,000 4,000 6,000 ,000 March April May June Assume that the overhead cost above consists of utilities, supervisory salaries, and maintenance. The breakdown of these costs at the 4,000 machine-hour level of activity is as follows: Utilities (variable).... Supervisory salaries (fixed) Maintenance (mixed) Total overhead cost$19,000 S 8,000 . 4,000 7,000 company uses the high-low method to estimate a cost formula for maintenance What is total maintenance cost the company expects to incur at an activity level of 6 machine hours? ,500 A. $10,125 B. $14,125 C. $23,125 D. $27,125 E. None of the above 6. Minist Corporation sells a single product for $15 per unit. Last year, the company's sales revenue was $225,000 and its net operating income was $18,000. If fixed expenses totaled $72,000 for the year, the break-even point in unit sales was (choose the closest answer): A. 15,000 B. 9,900 C. 14,400 D. 12,000 E. 18,000