Oaklis Company has provided the following data for maintenance cost: Prior Year Current Year Machine hours 21,000 23,500 Maintenance cost $34,500 $37,750 Maintenance cost is a mixed cost with variable and fixed components. The fixed and variable components of maintenance cost are closest to: $34,500 per year plus $1.30 per machine hour $7,200 per year plus $.769 per machine hour $30,550 per year plus $.769 per machine hour $7,200 per year plus $1.30 per machine hour At an activity level of 9,100 machine-hours in a month, Curt Corporation's total variable production engineering cost is $803,530 and its total fixed production engineering cost is $161,280. What would be the total production engineering cost per machine-hour, both fixed and variable, at an activity level of 9,600 machine-hours in a month? Assume that this level of activity is within the relevant range. (Do not round Intermediate calculations.) $105.10 $104.21 $104.75 $105.28