1. The problem statement, all variables and given/known data See the attached problem. 2. Relevant equations See the attached problem. 3. The attempt at a solution I used washer method and got an inner radius of x=y^2 and an outer radius of x=y+2, I calculated my upper limit as being 4 and my lower limit as being 0. The answer is 72π/5, but I can't seem to get that answer. Are my limits of integration wrong and/or did I use the wrong method?