Answer:
40
Step-by-step explanation:
The distance between x and y is: [tex]|x-y|[/tex]
Let '20' be 'x' and '-20' be 'y':
|20-(-20)|
Distribute '-' into '-20':
|20+20|
Add:
|40|
Determine Absolute Value:
40
The distance between 20 and -20 should be forty.
