18. The base of a solid is the region in the first quadrant bounded by the graph of y = 2- and the T- and Y-axes for 0

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Extracted text: 18. The base of a solid is the region in the first quadrant bounded by the graph of y = 2- and the T- and Y-axes for 0 <>< 3.="" for="" the="" solid,="" each="" cross="" section="" perpendicular="" to="" the="" y-axis="" is="" a="" rectangle="" whose="" height="" is="" five="" times="" its="" width="" in="" the="" "y-plane.="" what="" is="" the="" volume="" of="" the="">