Question

What does the long and short bar mean in decimals

these 2 or the two choices I need to make and I don't know which one to pick

Answer 1

The numbers with the line over them means that they are never ending. for example, if the eight in 3.8 had a line over it, that means he 8 would keep on going forever like this, 3.8888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888 and so on.

Explanation: