Describe all numbers x that are at a distance of 4 from the number 9. Express this using absolute value notation.

|x - 9| = 4

Step-by-step explanation:

All numbers x that are at a distance of 4 fro the number 9

Given two numbers a and B, the absolute distance between them is written as :

|a - b| = c

Hence all numbers x at distance of x from 9

|x - 9| = 4

{x : |x - 9| = 4}

a. she will receive a refund of $278.

step-by-step explanation: