Mathematics, 01.08.2019 06:10, joshxg227

Josephine is taking a college course, and her professor bases the course grade on the average of 2 tests taken in the semester. she wants to know what she needs to earn on the last test to maintain her grade. rearrange the following equation for b, where a is the average of 2 test scores, a and b.

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Josephine is taking a college course, and her professor bases the course grade on the average of 2 t...