Answer number 7 and 8 I will pick the right answer

What is the length of the segment joining the points at (4,5) and (6,-2) round to the nearest tenth if necessary

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.

Darian wants to build a regulation size pool table that is 9 feet in length.he plans he ordered are 18 by 36 inches. what is the scale factor of the dilation he must use to build a regulation pool table