A fruit company packs three types of gift boxes containing oranges, grapefruit, and tangerines. Box A contains 7 oranges, 3 grapefruit, and 2 tangerines. Box B contains 11 oranges, 9 grapefruit, and 5 tangerines. Box C contains 3 oranges, 5 grapefruit, and 3 tangerines. The shipping manager has available 58 oranges, 52 grapefruit, and 31 tangerines. How many gift boxes of each type can she prepare? Use a system of three linear equations to solve the problem. How many gift boxes of each type can be prepared? number of A boxes = number of B boxes = number of C boxes =