Find the perimeter.
3x2 – 4
5x - 1
4x + 2
2x2 + 9

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.

Select a graph that have an equation with a < 0

Which of the following is the result of expanding the series