An aquarium tank can hold 5400 liters of water. there are two pipes that can be used to fill the tank . the first pipe alone can fill the tank in 90 minutes. the second pipe alone can fill the tank in 60 minutes. when both pipes are working together how long does it take to fill the tank.

Miguel bought a movie ticket that cost $5. he also bought popcorn and a bottle of water. how much did miguel spend altogether?

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

That table shows measurements (in invhes$ from cubes with different side lengths. which pairs of variables have a linear relationship? check all that apply