Agumball machine has 2 red gumballs and 2 green ones. if you buy 2 gumballs, what is the probability of both of them being red?

If 24 people have the flu out of 360 people, how many would have the flu out of 900. choose many ways you could use proportion that david would use to solve this problem

What is the base of 1/9 to the power of 2

The sum of the speeds of two trains is 720.2 mph. if the speed of the first train is 7.8 mph faster than the second train, find the speeds of each.