Please help with all. Please show work in a clear format so that I may understand.

Find the volumes of the solids generated by revolving the regions hounded by the graphs of the equations about the given lines. y = x2 y=4xx2 (a) the xaxis (b) the line y = 5 E Use the shell method to write and evaluate the definite integral that represents the volume of the solid generated by revolving the plane region about the x-axis. Y= VX+6 Y = X y = 0A cylindrical water tank 6 meters high with a radius of 2 meters is buried so that the top of the tank is 1. meter below ground level (see gure). How much work is done in pumping a full tank of water up to ground level? (The water weighs 9800 newtons per cubic meter.) newtonimeters Ground level