Erkkila Inc. reports that at an activity level of 6,500 machine-hours in a month, its total variable inspection cost is $423,830 and its total fixed inspection cost is $158,372. What would be the average fixed inspection cost per unit at an activity level of 6,800 machine-hours in a month? Assume that this level of activity is within the relevant range. Multiple Choice $24.36 $23.29 $40.84 $89.57 Maxt 9