The United States is made up of this many states.
This is the legal age to vote in the United States.
The United States Government has this many branches.
The United States Senate has this many Senators from each state.
The United States President can serve for this many years in a single term of office.
The American flag has this many stripes.
The Bill of Rights is made up of this many amendments.
18
10
50
2
3
13
4
