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[10 marks} 8. Suppose that the price, p, in dollars, and the number of items sold,x, are related by: p2 xp + x2 = 175.

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[10 marks} 8. Suppose that the price, p, in dollars, and the number of items sold,x, are related by: p2 xp + x2 = 175. (5 marks) a. Find dp . (ix (5 marks) b. If p and x are functions of time, how fast is p changing with respect to time when p = $10 and x is increasing by 5 items per day

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