A drawer is filled with 9 black shirts, 6 white shirts, and 5 gray shirts. One shirt is chosen at random from the drawer. Find the probability that it is not a white shirt. Two pools are being filled with water. To start, the first pool contains 712 liters of water and the second pool is empty. Water is being added to the first pool at a rate of 20.5 liters per minute. Water is being added to the second pool at a rate of 42.75 liters per minute. After how many minutes will the two pools have the same amount of water? minutes How much water will be in each pool when they have the same amount? liters