This question has several parts that must be completed sequentially. If you skip a part of the question, you will not receive any points for the skipped part, and you will not be able to come back to the skipped part. Tutorial Exercise A commodity has a demand function modeled by p = 107 - 0.5x and a total cost function modeled by C=30x + 38.75, where x is the number of units. (a) What unit price yields a maximum profit? (b) When the profit is maximized, what is the average cost per unit