Solve the following and show the complete solution. 1. Find Duf at P: f(x,y) = sin(8x – 5y); P (5,8)); u = (i -j)

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Q: Find the consumers' surplus at a price level of p = $130 for the price-demand equation below. p=…

A: p=400-0.02xat p =130130=400-0.02x0.02x=270x=2700.02=13500x=13500TE=px =130(13500)TE=1755000

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