Adriana Corporation manufactures football equipment. In planning for next year, the managers want to understand the relation between activity and overhead costs. Discussions with the plant supervisor suggest that overhead seems to vary with labor- hours, machine-hours, or both. The following data were collected from last year's operations. Month 1 2 3 4 5 6 7 8 9 10 11 12 Labor-Hours Machine-Hours 735 1,355 715 1,415 670 1,526 735 1,446 770 1,587 745 1,584 735 1,383 735 1,308 715 1,450 785 1,550 685 1,290 710 1,614 Overhead Costs $ 102,784 103,777 109,810 108,359 116,155 114,549 106,986 102,052 106,383 113, 180 103,940 117,548 Required: a. Use the high-low method to estimate the fixed and variable portions of overhead costs based on machine-hours. b. Managers expect the plant to operate at a monthly average of 1,700 machine-hours next year. What are the estimated monthly overhead costs, assuming no inflation? Book Complete this question by entering your answers in the tabs below. Required A Required B Use the high-low method to estimate the fixed and variable portions of overhead costs base "Variable cost" answer to 2 decimal places.) Variable cost (per machine hour) Fixed cost RA Required B eBook Complete this question by entering your answers in the tabs below. Required A Required B Managers expect the plant to operate at a monthly average of 1,700 machine-hours monthly overhead costs, assuming no Inflation? Overhead costs