Sarah took clothes to the cleaners three times last month. First, she brought 3 shirts and 2 pairs of slacks and paid $19.45. Then she brought 5 shirts, 4 pairs of slacks, and 1 sports coat and paid $43.90. Finally, she brought 4 shirts and 1 sports coat and paid $17.45. How much was she charged for each shirt, each pair of slacks, and each sports coat? Sarah was charged S for each shirt, S BOXER for each pair of slacks, and S for each sports coat.