Question: To pass a course with a C grade, a student must have an average of 70 or greater. A student's grades on three tests

To pass a course with a C grade, a student must have

To pass a course with a C grade, a student must have an average of 70 or greater. A student's grades on three tests are 69, 71, and 65. Find what score the student must get on the next test to get a C average or better.

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