A manufacturer of men’s shirts determines that her costs will be $500 for overhead plus $9 for each shirt made. Her accountant has estimated that her selling price p should be determined by p = 30 − 0.2 √ q, where q is the number of shirts sold. The total revenue that the firm should obtain is __________. The total cost that the firm will encounter is __________. The profit that the firm will realize is __________.