Eliza volunteers at a nearby aquarium
where she tracks the migratory patterns
of humpback whales from their feeding
grounds to their breeding grounds. She
recorded the distance traveled by the
whales each day for a 7-day period at
the start of their migration. Based on
Eliza's data, about how long will it take
the humpback whales to travel the
3,100 miles to their breeding grounds?