About 7.5 gallons of water fill up 1 cubic foot of space. How many gallons of water will fill a pool with dimensions of 3ft by 1.5 foot by 3.5?

Fred has a total of 62 dvd and cd. if the number of cd is three more than two times the number of dvd, how many cd does he have?

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?

Alex took his brother to a birthday party. the party was scheduled to last for 1 and 3/4 hours but they stayed for 4/5 of an hour more. how long did she stay at the party?