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a teacher knows that 80 percent will score no more than 5 points above or below the class average 85 percent on the test which inequality represents the test score of 80 percent of her student.

  • Darin - ,

    Darin is not a subject I have ever heard of.

    You have not provided the optional answers.

    It should look something like
    80 < x < 90
    Where x is the test score of 85% of the students.

  • Darin - ,

    wouldn't it be 5%?

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