Please answer as soon as possible and show work?

7 4 points A solid uniform disk of diameter 3.20 m and mass 42 kg rolls without slipping to the bottom of a hill, starting from rest. If the angular speed of the disk is 4.27 rad/s at the bottom, how high did it start on the hill? (Idisk = 0.5MR2) O 3.14 m 3.57 m 4.28 m 2.68 m