Answer:
x + 3 greater than or equal to 8 would be the solution
Domain:
∞
Interval Notation: (-∞, ∞)
Range:

Interval Notation: (-∞, 4)
IT IS THE SECOND ONE
Hope this helps!!!!
If x-y=2 then x=2+y
And if you insert that in the first equation




Or

The first one is bigger so the answer is
No, all linear pairs are supplementary but all supplementary angles are not linear pairs.