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Biology, 01.11.2020 22:30 mgreenamb

You notice the baseball and soccer field at school are getting torn up by gophers, but you want to know how many there are so you can capture them all. One day you go out and catch 15 to tag and release. A week later you catch 12, and 9 of them are marked. How many gophers are there in the population?

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