Answer:
D is the answer
Step-by-step explanation:
Inequalities are just like equations it's just that the sign flips anytime you multipliy or divide by a negative number
1.

First Add 7 to both sides

2.

First Subtract 12 From Both Sides
Answer:
c = 27
Step-by-step explanation:
If c divided by 9 equals to 3, then the other way around would be 3 times 9 equals to c, which is how you would get 27. If you look at PEMDAS, multiplication and division are together and work the other way around when used with each other, just like addition and subtraction.
I know this is kind of a lame answer with no fancy math words to back it but please, it's the best I could do.
The answer: it is not in a quadrant, true