Work these problem. (See Example.)17. The total cost (in dollars) of producing x college a...

Work these problem. (See Example.)

17. The total cost (in dollars) of producing x college algebra books is C(x) = 42.5x + 80,000.

(a) What are the fixed costs?

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(b) What is the marginal cost per book?

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(c) What is the total cost of producing 1000 books? 32,000 books?

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(d) What is the average cost when 1000 are produced? When 32,000 are produced?

Example

An electronics company manufactures handheld PCs. The cost function for one of its models is C(x) = 160x + 750,000.