Asked by Sam

Tom's online class requires 10 tests, and he needs to score 70 or higher to pass the class. He took 9 tests so far and his average is 68. What is the lowest score on the last test that will let him pass the course?
Answered by Ms. Sue
10 * 70 = 700

9 * 68 = 612

700 - 612 = ?

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