Answer:

Step-by-step explanation:
The open circle means that the point is not included in the solution set, and the arrow pointing left means that all numbers less than -2 are members.
In set-builder notation, each term has a special meaning. The braces enclose the members of the set.
Here's how you translate the notation,

Here is how to work 2, 3 , and 4.
C
20% increase
$50 + 20% = $60
Answer:
The ans is correct. But I think C is also correct.
Step-by-step explanation: