What is m + 1 = -3 showing work somehow

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.

Plzzz i beg u so much asaaaap ! what is the slope of this line? enter your answer in the box.

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.