1. The problem statement, all variables and given/known data Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified line. Sketch the region, the solid, and a typical disk or washer. 2. Relevant equations 3. The attempt at a solution Sometimes, I struggled with drawing a solid and a typical disc. Also, I am unsure with the solution for problem 4. Do you see any mistakes? I would so much appreciate your help.