What’s the difference between rigid transformations and non rigid transformations?

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?

Who long does it take to drive 150 miles at 45 miles per hour

What unit of been sure would be appropriate for the volume of a sphere with a radius of 2 meters