What is the diameter of this disk

Which is the graph of the function y=2(4)^x

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?

This graph shows which inequality? a ≤ –3 a > –3 a ≥ –3 a < –3