Jim took clothes to the cleaners three times last month. First, he brought 4 shirts and 1 pair of slacks and
paid $15.45. Then he brought 7 shirts, 2 pairs of slacks, and 2 sports coats and paid $41.39. Finally, he
brought 3 shirts and 2 sports coats and paid $20.45. How much was he charged for each shirt, each pair
of slacks, and each sports coat?
4