Two cylinders have the same volume. For the first cylinder, the radius of the base is 20 inches and the height is 11 inches. The second cylinder has a radius of 8 inches. What is the height of the second cylinder rounded to the nearest hundredth?

Amountain climber starts a climb at an elevation of 453 feet above sea level at his first rest stop he has climbed 162 feet and by his second rest stop he has climbed another 207 feet its getting late in the day so the climber starts his way down if the climber desends 285 feet how much does he need to ascend or descend to return to the original starting point