Physics question - please solve

A 15 kg rabbit slides down the slopes of a waterslide. The waterslide is 20 meters tall as shown. The rabbit starts with an initial speed of 6 m/s. ( 5 points) a. What is the total initial mechanical energy of the rabbit atop the slide? b. What is the potential energy of the rabbit atop the hill where it is going 12 m/s? c. How tall was that hill? d. What is the kinetic energy of the rabbit when it goes over the 8 m tall hill? e. How fast was the rabbit going atop that hill? f. How much potential energy did the rabbit have atop the loop? g. How much kinetic energy did it have atop the loop? h. How fast was it going atop the loop? i. What was the speed of the c rabbit at the bottom of the slide