Answer:
I think the answer is Y>-2
Let's take a peek of each term, to be specific, the exponent of the variables only, to see what degree each term is

so...which term has the highest degree? well, that one, is the degree of the polynomial
Answer:
1 is, 2 is, 3 isn't, 4 isn't
Step-by-step explanation:
Some answers may not add up the same way!
Answer:
Infinitely many solutions.
Step-by-step explanation:
3x-3y=6
-6x+6y=-12
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2(3x-3y)=2(6)
-6x+6y=-12
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6x-6y=12
-6x+6y=-12
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0=0