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.

Answer 1

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.

Answer 2

wouldn't it be 5%?