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 Labor-Hours Machine-Hours 735 1,345 710 1,406 680 1,519 740 1,456 785 1,588 765 1,576 740 1,380 735 1,311 710 1,456 800 1,542 1,290 705 1,606 Overhead Costs $ 102,769 103,872 109,833 108,400 116,139 114,565 107,074 102,116 106,357 113,080 101,000 113,640 685 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 1,500 machine-hours next year. What are the estimated monthly overhead costs, assuming no inflation? 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 based on machine-hours. (Round "Variable cost" answer to 2 decimal places.) Variable cost (per machine hour) Fixed cost 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 OOO Labor-Hours Machine-Hours 735 1,345 710 1,406 680 1,519 740 1,456 785 1,588 765 1,576 740 1,380 735 1,311 710 1,456 800 1,542 685 1,290 1,606 Overhead Costs $ 102,769 103,872 109,833 108,400 116,139 114,565 107,074 102,116 106,357 113,080 101,000 113,640 705 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 1,500 machine-hours next year. What are the estimated monthly overhead costs, assuming no inflation? 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 1,500 machine-hours next year. What are the estimated monthly overhead costs, assuming no inflation? Overhead costs