Answer:
-120
Step-by-step explanation:
The change is the total change. Since you lost money, the change will be negative. To find the actual change, use absolute value:
|100| + |-20|
= |100| + |20|
= 100 + 20
= 120
Since the change is negative,
-120.
Absolute value is when you take only the integer, not the sign. For example, if you want to find the distance between two points on a number line.
