Test: Common Core: High School - Algebra

1.

There are a total of 450 firefighters in a town. There are 4 fire departments in the town: North, South, East, and West. The North Department has 77 firefighters. The East Department has 21 firefighters. Let W represent the number of firefighters in the West Department and S represent the number of firefighters in the South Department. Which equation best illustrates this situation?

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