Answer:
Step-by-step explanation:
x-4 greater or equal 0
x greater or equal 4
Answer:
A. x-6
Step-by-step explanation:
Maybe you want to simplify ...
((6x)/(10x^2))/(6/(10x^3 -60x^2))
Invert and multiply. Cancel common factors from numerator and denominator.

X is the number of carpeting done
22x+100=25x+70
22x=25x+70-100
22x=25x-30
22x-25x=-30
-3x=-30
x=-30/-3
x=10
A person would have to do the carpeting 10 times in order to pay the same price for both companies (equal).
I dont know if that's your question but this is what is usually asked when giving a problem of that kind.
That graph would be non-linear