Help me solve # 13 and 11

9-14 IIII Use the method of cylindrical shells to find the volume the solid obtained by rotating the region bounded by the given curves about the x-axis. Sketch the region and a typical shell 9. x = 1+y?, x= 0, y= 1, y=2 10. x = Vy, x = 0, y= 1 1 1. y = x', y =8, x= 0 12. x = 4y2 - y3, x= 0 13. y = 4x2, 2x + y= 6