Please help me on this will give you brainliest

Given a(-12,5) and b(12,29) find the point that divides the line segment ab three-eighths of the way from a to b

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.

Deepak plotted these points on the number line. point a: –0.3 point b: – 3 4 point c: – 11 4 point d: –0.7 which point did he plot incorrectly?