Question

In order to be invited to tutoring or extension activities, a student's performance must be at least 20 points higher or lower than an average score. If the average score is 105, which inequality represents p, the scores for students who are eligible for tutoring or extension activities?

Answer 1

If p is the average score then the students are eligible for tutoring or extension activities if the below inequality holds true.

| p-105 | >= 20
which is read as absolute value of (p-105) greater than or equal to 20

Answer 2

Answer:

D.  p ≤ 85 or p ≥ 125

You only have to meet 1 requirement, which A & B have 2.  

Due to the wording, at least 20 points, I would take that as meaning 105-20=85 is allowed or 105+20=125 is allowed.  

C, does not allow you to use 85,125.