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Answer
Figure This!
 

Answer:
Flying at 25 miles per hour for 12 hours per day, a tern could make the roundtrip journey in about 60 days.

 

Complete Solution:
At 25 miles per hour, a tern would travel 100 miles in 4 hours. Flying 12 hours in a day, the bird would cover 300 miles. Therefore, the one-way journey of 9000 miles would require 30 days.

25 mph × 12 hr/day = 300 miles/day
9000 ÷ 300 miles/day = 30 days

The roundtrip would take twice that, or about 60 days to complete.

 
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