A gumball machine has 3 yellow gumballs, 5 blue gumballs and 11 green gumballs. Write an equation that will have the gumballs equal the total number, n, of gumballs in the machine.

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?

Explain how you can find the missing fraction in 3 4/5 / (blank) 2 5/7. then find the missing fraction.

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry