A firm in a perfectly competitive industry has fixed costs of FC = 15, marginal costs of MC = 5 + 14q, and average variable costs of AVC = 5 + 7q. (a) If the price is $75, how much does the firm supply?  (b) Does the firm continue to supply this quantity in the short-run?  (c) Suppose there exists a standard market demand function from consumers (downward slopping). Please provide a logical discussion about how the market achieves short-run equilibrium.

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