Erkkila Incorporated reports that at an activity level of 6.800 machine-hours in a month, its total variable impection cost is $424280 and its total fixed inspection cost is $170.684 What would be the average foxed inspection cost per unit at an activity level of 7300 machine hours in a month? Assume that this level of activity is within the relevant range Multiple Choice O O 52530 538.35 $24.04 $8749