Economics · Economics

The demand function of a commodity is given by p = 21 - 3x. If the price is x = 3, what will be the value of marginal revenue?

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The demand function of a commodity is given by p = 21 - 3x. If the price is x = 3, what will be the value of marginal revenue?

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The demand function of a commodity is given by p = 21 - 3x. If the price is x = 3, what will be the value of marginal revenue?

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