3. Van ordered a gross of $18.00 sunglasses for his store. He marked them up 50% when he sold them. After 9 weeks, he put them on sale for 75% off the selling price. Nolan sold 2/3 of his sunglasses at the regular price and 1/3 at the sale price. Did Van make a profit on this shipment of sunglasses? If so, how much?