A swimming pool used in international competition, with a volume of 660,000 gallons of water, is to be drained for cleaning. The drain can empty 12 gallons of water from the pool every second. What is the rate of change of the volume of water in the pool

Achild has a box full of colored building blocks. she will choose one block without looking. the odds against choosing a blue block are 4/7. what is the probability of choosing a blue block? amanda is playing a role-playing game with her friends. she will roll dice to determine if her character unlocks a treasure chest. the probability of her character unlocking the treasure chest is 13/20. find the odds in favor of her character unlocking the treasure chest.