The first term of a geometric sequence is 15 and the second term is 6. find the fourth term.

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.

Complete the equation of the line through (−10,3) and (−8,−8). use exact numbers.

The suare root of 9x plus 7 plus the square rot of 2x equall to 7