Question 9 Suppose that f'(t) > −3 for all t € R and ƒ(3) = −1. Then ƒ(−7) is (a) > 29 (b) < −4 (c) < 29 (d) > 31 (e) none of these

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A: p=Dx=37.5-0.05xp=Sx=15+0.04x

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A: Note: As per our Guidelines , we can solve first one . Please repost remaining one.

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Q: Find the​ consumers' surplus at a price level of p=​$150 for the​ price-demand equation below.…

A: The price demand equation is p=Dx=200-0.05x