** a. 2x - x²)dx b. ² (2x - x²) dr C d. (^(-2x)) de -x²-2x)dx

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Suppose that candy costs $4 per pound and cashews cost $5 per pound. Let x be the number of pounds of candy bought and y be the number of pounds of cashews bought.  Graph the region in the xy-plane that represents all possible weight combinations of candy and cashews that cost less than or equal to $20.

What is the area of the region enclosed by the curve y sketched below) and the x-axis? Enter an exact answer. Number A + x + 6 (whose graph is