7x-7-2x-2+3x-12=8x-21
I think
Answer:
I believe the answer is (-4,-1)
Step-by-step explanation:
Answer:
Linear equation
Step-by-step explanation:
f(x) = 2x + 15
Linear because constant increase
Answer:
A. 80
Step-by-step explanation:
No math necessary. You know the brace needs to be longer than the distance between posts, so cannot be 4, 15, or 42 inches. The only answer choice longer than 64 inches is the correct one:
80 inches