Will drove to the lake and back. On the trip there he drove 50 mph and on the return trip he went 40 mph. How long did the trip there take if the return trip took 5 hours?

Acone is placed inside a cylinder. the cone has half the radius of the cylinder, but the height of each figure is the same. the cone is tilted at an angle so its peak touches the edge of the cylinder’s base. what is the volume of the space remaining in the cylinder after the cone is placed inside it?