Austin makes hand-knitted scarves using a single input, colored yarn. The price of one of Austin’s scarves is $40, and each one requires $12 worth of yarn. Part 1: How much profit does Austin earn per scarf that he produces and sells? Part 2: Suppose that Austin produces 100 scarves. How much profit does he earn? Part 3: Suppose that the price of a scarf increases to $50. How much profit does Austin earn per scarf that he produces and sells? Part 4: Suppose that the price of a scarf increases to $50, and that Austin produces 100 scarves. How much profit does he earn? Part 5: Suppose that the price of a scarf increases to $50, and that the price of yarn increase to $22. How much profit does Austin earn per scarf that he produces and sells? Part 6: Suppose that the price of a scarf increases to $50, and that the price of yarn increase to $22. How much profit does he earn when he produces and sells 100 scarves?