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SAT I 每日一问:2013年4月17日

沪江英语 2013-04-17 09:13
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Mathematics > Standard Multiple Choice

Read the following SAT test question and then click on a button to select your answer. 

A manager estimates that if the company charges  dollars for their new product, where , then the revenue from the product will be  dollars each week. According to this model, for which of the following values of  would the company’s weekly revenue for the product be the greatest?

(A) 10
(B) 20
(C) 50
(D) 100
(E) 200

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