The associative property states : a + (b + c) = (a + b) + c....and this is what ur problem is.
It will be A.because thr 4 coungres if u divide it to the inches it will give u the answer
The answer is A. Let me know if you need an explanation.
Thr answer is B) y= -4x + 48
since if you replace x with 2, you would get 40 when you solve the answer.
R1 and R2 and also l1 and l2
Parallel means they can never touch/ intercept
Hope this helps!