your cousin vinnie owns a painting company with fixed costs of $150 and the following schedule for variable costs: quantity variable cost average fixed cost average variable cost average total cost (houses painted per month) (dollars) (dollars) (dollars) (dollars) 1 15 150.00 15.00 165.00 2 35 75.00 17.50 92.50 3 60 50.00 20.00 70.00 4 90 37.50 22.50 60.00 5 135 30.00 27.00 57.00 6 240 25.00 40.00 65.00 7 480 21.43 68.57 90.00 the efficient scale is houses.