3. At an activity level of 6,800 units, Tennant Corporation's total variable cost is $125,188 and its total fixed cost is $164,152 (4pts) For the activity level of 7,100 units, compute: (a) the total variable cost; (b) the total fixed cost; (c) the total cost; (d) the average variable cost per unit; (e) the average fixed cost per unit; and (f) the average total cost per unit. Assume that this activity level is within the relevant range