The total area of Puget Sound can be roughly estimated using a rectangular shape that is 100 mi long and 10.2 mi wide.
Recall that the area of a rectangular shape is given by
Where L is the length and W is the width.
For the given case,
Length = 100 miles
Width = 10.2 miles
So, the area of the Puget Sound is
In Puget Sound, killer whales require approximately 5 mi^2 of territory per whale Based on this information.
How many killer whales could live in Puget Sound?
Divide the area of the Puget Sound by the territory area per whale
Therefore, 204 killer whales may live in Puget Sound.