How can I set up this problem to solve for the integral?

You create a container by rotating the curve y = 5 ln(z - 4) for y = 0 to y = 9 around the y-axis. You then ll the container to a height of 7 meters with a liquid that has density 780 kglm3. The work required to pump the liquid out of this container (over its top edge} is: (Recall that acceleration due to gravity is 9.81 misecz.)