In order to receive a B in Biology class, Michael must have an average score of at least 82 on

In order to receive a B in Biology class, Michael must have an average score of at least 82 on 5 tests. So far, he has made 88, 90, 75, and 76.

What must he score on the last test to make at least a B in the class?
1. at least 88
2. at least 87
3. at least 82
4. at least 81


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