Could someone help with this math question please? :)

In science class, the average score on a lab report is 78 points, with all students scoring within 2.2 points of the average. If x represents a student's score, write an equation that represents the minimum and maximum scores.

|x + 2.2| = 78
|x − 2.2| = 78
|x + 78| = 2.2
|x − 78| = 2.2

Question

Could someone help with this math question please? :)

In science class, the average score on a lab report is 78 points, with all students scoring within 2.2 points of the average. If x represents a student's score, write an equation that represents the minimum and maximum scores.

|x + 2.2| = 78
 |x − 2.2| = 78
 |x + 78| = 2.2
 |x − 78| = 2.2

Narad · Answer

$$\bar x=78$$
$$78-2.2 \le x \le78+2.2$$