A) 5
| 2 • 4 - 7 | + |-4|
| 8 - 7 | + |-4|
| 1 | + |4|
=5
When “|” is on both sides of the number and the number is negative you need to change it to positive because it will always be positive and if the number is positive with this “|” around it then it remains positive.
