I don't know what's it asking me. what should I do?
2 answers:

- a number

- its square

- the sum

- less than or equal
negative three - I don't have to explain this one, do I?

- the sum of a number and its square is less than or equal negative three
The sum of a number (n) and it's square (n^2) is less than or equal to -3. We have to write this out in math lingo.
"The sum of a number" means addition, aka +. Example: 1+1=2. The sum of 1 and 1 is 2.
n + n^2
Is less than (<) or equal to (=) -3
n + n^2 <= -3
<= on your paper is written with the arrow and a line underneath. That is option J.
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Simplified version would be 3 square root of 11
Angle C and the 112 degree angle are supplementary, so angle C measures 180-112=68 degrees.
This means that by the exterior angle theorem, 
Answer:
6(-3+7x)
Step-by-step explanation:
Factor out 6 from each term
- 6*3 + 6*7x
6(-3+7x)
3.20 > 3.02 (3.20 is greater then 3.02)