Florida girl's death brings to light tonsillectomy risks. September 23, 2010|By Lorri Helfand and Letitia Stein, St. Petersburg Times. The recent death of a seemingly healthy, 12-year-old Pinellas County girl following a tonsillectomy may have many parents worried about one of the most common surgical procedures performed in children.
In a perfectly competitive market price is equal to marginal revenue. Price will also equal average cost. If price was greater than average cost the firms in the market would be making profit. This would lead to more firms entering (remember no barriers to entry) until profits are eliminated.
Then subtract the firm's total cost (given in the table) at each quantity. At a market price of $31, the firm's total revenue equals $217 at a quantity of 7 ($31 times 7), and its total cost is given at $180. Therefore, the firm's total profit at this quantity is $37.