1. Let R be the region bounded by y=- and the 2x+1 horizontal line y = 3, and let S be the region bounded by the graph x-14x +53x-40 of y= and the horizontal lines y = 1 and y = 3. 2x+1 a. Find the area of R. b. Find the area of S. C. x-14x +53x-40 Set up, but do not evaluate, an integral that could be used to find the volume of the solid generated when R is rotated about the hori- zontal line y = 1. it DL li