Let E be the solid region in the first octant bounded by the coordinate planes, the cylinder x 2 + y 2 = 5y and the sphere x 2 + y 2 + z 2 = 25. Write an iterated integral used to solve ∫∫∫ E y dV...

Let E be the solid region in the
first octant
bounded by the coordinate planes, the cylinder x²
+ y² = 5y and the sphere x² + y² + z² = 25. Write an iterated integral used to solve ∫∫∫_E y dV using:

a. Cartesian Coordinates.

b. Cylindrical Coordinates.