Help for 15 points please

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?

How do u write a function for the reflection across the y axis

Let y = and z = . translate "z less than y" into an algebraic expression, and solve it.