If you are just simplifying it it would be 6x because it's 5x plus one more x but if you are trying to find x then I have no idea
Answer:
I don't know. truncating your text book
Answer:
Solve 3-6x >= 0
6x <= 3
x <= 1/2
Domain: All Real Numbers <= 1/2
Let T be total of money earned and W= number of windows washed
T=4W
Add them all up and if they add up to 180 then your side lengths are good