You have a jar of marbles. there are 15 red, 20 blue,7 green, and 18 red marbles. you choose one at random then replace it and choose another. what is the probability of both being blue?

Abaseball team drinks 10/4 gallons of water during a game. which mixed number represents the gallons of water consumed? a) 1 1/2 gallons b) 2 1/2 gallons c) 2 3/4 gallons d) 3 1/2 gallons