charlotte is going to flip 3 quarters and lists the sample space in a tree diagram. how many outcomes are possible from flipping 3 quarters?

There are 8 possible outcomes from flipping 3 quarters.

The sample space in a tree diagram would look like this:
- H (heads) -> H -> H
-> H -> T
-> T -> H
-> T -> H
-> H
-> T
-> T -> H -> H
-> T
-> T -> H
-> T