Use the following to answer questions:
Figure: Game-Day Shirts 
-(Figure: Game-Day Shirts) Rick is one of 10 vendors who sell game-day T-shirts at football games in a perfectly competitive market. His costs are identical to the costs of the other 9 vendors. If the industry is in long-run equilibrium, how many shirts will each vendor sell?
Definitions:
Aerobic Respiration
A process that requires large amounts of oxygen and uses glucose to make ATP.
Glucose
A simple sugar that is an important energy source for cells and the main sugar found in the blood, used by the body for energy and metabolic processes.
Pyruvic Acid
A three-carbon compound that plays a key role in energy production processes in living cells, particularly glycolysis.
Pyruvic Acid
A colorless liquid with a sour taste; a key intermediate in several metabolic pathways, including glycolysis.
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