Im not sure how this one is done. Thanks !

A vertical right-circular cylindrical tank measures 30 ft high and 12 ft in diameter. It is full of liquid weighing 62.4 1b/f:". How much work does it take to pump the liquid to the level of the top of the tank? Set up the integral that gives the work required, in fi-lb, with y = 0 corresponding to the bottom of the tank [Type an exact answer, using x as needed.) The amount of work required is( Round to the nearest whole number Ib. ft-lb it. fw/lb