You are thinking of opening up a large chain of hair salons. You calculate that your average cost of shampoo and supplies is $10.25 per customer and the cost of water is $1.25 per shampooing. The salon has fixed operating costs of $110 500 per month. You think you can charge three times their average variable cost for each cut and shampoo service. If you want to make a monthly profit of $50 000. How many customer's hair must you cut and shampoo per month? O 6500 O9769 O4805 6979