Answer
Montreal has 5 games during the week.
Montreal plays the following teams:
Philadelphia, St. Louis, Pittsburgh, New York
Montreal plays Philadelphia once.
Montreal plays St. Louis once.
Montreal plays Pittsburgh twice.
Montreal plays New York once.
Work Step by Step
The vertex for Montreal has 5 edges connected to it, so Montreal has 5 games during the week.
If an edge connects the vertex for Montreal to the vertex for another team, then Montreal plays that team. Montreal plays the following teams:
Philadelphia, St. Louis, Pittsburgh, New York
The number of edges connecting the vertex for Montreal to the vertex for another team shows how many times Montreal plays that team.
Montreal plays Philadelphia once.
Montreal plays St. Louis once.
Montreal plays Pittsburgh twice.
Montreal plays New York once.
