37. The sales of a certain merchandising company are on their bestselling item is being represented by the function 28x – 1250 S(x) = 4x – 375 Where S(x) is the number of sales of the of their bestselling item, and x is the average price of their bestseller item. If the price of their best seller item gets unexpectedly large, at most how many units of it can they sell?

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