The marginal revenue for the 10th seat sold is $600.
<h3>What is marginal revenue?</h3>
This is the increase in revenue that results from the sale of one additional unit of output.
In a perfectly competitive market, price, average revenue and marginal revenue are the same at each level of output.
P = AR = MR
For this given question, P = AR = MR = $600
Thus, the marginal revenue for the 10th seat sold is $600.
Learn more about marginal revenue here: brainly.com/question/13444663
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