Clemson bookstore sells S(x) books, 2 weeks after the beginning of semester. The price per book in Clemson bookstore is N(x) dollars, x weeks after the beginning of semester. V(x) dollars is the revenue of Clemson bookstore, 2 weeks after the beginning of semester. After 7 weeks of the beginning of semester, Clemson bookstore sells 250 books, and the books sold at Clemson bookstore is increasing 50 per week. After 7 weeks of the beginning of semester, the price per book at Clemson bookstore the book's price is decreasing 5 dollars per week. (a) After 7 weeks of the beginning of semester, how much is the revenue is 60 dollars, and of Clemson bookstore? 1

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