99/101 as a repeating decimal using bar notation to indicate the repeating digits

What is the value of the digit 1 in the number 13?

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.

What is the solution of sqrt x+2-15=-3