Abox contains 3 yellow, 2 red, 4 green and 3 black marbles. two marbles are taken one after the other at random from the box. what is the probability that both marbles are red?

There were 816 people at a concert when a band started to play. after each song, only half the people stayed to hear the next song. how many people were left at the concert after x songs? write a function to represent this scenario.

Aadc is formed by reflecting aabc across line segment ac, as shown in the figure. if the length of ac is 4 units, the area of aadc is square units.

Three runners competed in a race data were collected at each mile mark for each runner if the runner ran at a constant pace the data would be linear