Madison amd Jim paid 21.08 for one large pizza, 2 salads with the same price, and 2 drinks with the same price. The pizza cost 11.70, which was 3 times as much as the cost of one salad. They also used

Madison amd Jim paid 21.08 for one large pizza, 2 salads with the same price, and 2 drinks with the same price. The pizza cost 11.70, which was 3 times as much as the cost of one salad. They also used a coupon for 2.00 off their purchase. What was the cost of one drink?