Suppose that a firm is the single employer of labor in a market, thus it is a monopsony. if the wage is $10 to hire one worker, $12 to hire two workers, and $14 to hire three workers, what is the marginal cost of the firm from hiring the third worker?

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answer; societal marketing;

answer: marginal utility of the fourth brownie is 0.

explanation: marginal utility is the addtional utility gained from the consumption of one more unit of a good. it is given by,

so, marginal utility at the 4th unit will be given by

since, the values are not given here, you can simply find marginal utility at fourth unit by subtracting total utility at 3rd unit from total utility at 4th unit.