A company's profit is linearly related to the number of items the company sells. Profit, P, depends on the number of items sold, x. If the company sells 3000 items, its profit is $11,000. If the company sells 4000 items, its profit is $15,700.

(A) Find an equation relating P\displaystyle {P} to x\displaystyle {x}.

      P=\displaystyle {P}=  

(B)  Use your equation to determine the profit if the company sells 4790 items.
       $

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