Plz simplify: 3u + 7v + 4u – 2v 7u + 5v 7u + 9v 10u – 2v 12uv

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?

Ill mark the brainliest if you me with the these three questions 7,8,9

Atransformation t : (x, y) (x-5,y +3) the image of a(2,-1) is