Abox contains 20 red marbles and 30 blue marbles. a second box contains 10 white marbles and 40 black marbles. if you choose one marble from each box without looking, what is the probability that you get a blue and a back marble

Abby is preparing fruit punch for her party. she starts with a bowl filled with liquid that has 1/2 fruit juice and 1/2 sprite, but she decides it's too fruity. so she pours out 1/4 of the liquid, and then fills the bowl up again with sprite. what fraction of the punch is now sprite?

The number of fish in a lake can be modeled by the exponential regression equation y=14.08 x 2.08^x where x represents the year

Is it greater than or less than7*3_9*2