The Boone Weavers make shawls and afghans. They spin yarn, dye yarn, and weave yarn for each. A shawl requires 1 hour of spinning, 1 hour of dyeing and 1

hour of weaving. An afghan requires 2 hours of spinning, 1 hour of dyeing, and 4

hours of weaving. In a week, there is time to spend at most 13 hours spinning, 10

hours dyeing and 30 hours weaving. How many shawls and how many afghans

should be made to maximize profit if shawls bring in a profit of $25 and afghans

bring in a profit of $40?