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75. Cost. A company manufactures downhill skis. It has fixed costs of $25,000 and a marginal cost given by
where C(x) is the total cost at an output of x pairs of skis. Find the cost function C(x) and determine the production level (to the nearest unit) that produces a cost of $150,000. What is the cost (to the nearest dollar) for a production level of 850 pairs of skis?
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