Answer:
A
Step-by-step explanation:
So we have the equation:

On the right combine like terms:

Subtract 18 from both sides. The right cancels:

Divide both sides by 3:

The answer is A, -11.
Answer:
Parallel
Step-by-step explanation:
QR and ST both parallel to y axis.
y = -2x-3
Lines that are perpendicular have slopes that are negative reciprocals of each other. Meaning, if a line has slope , then a line perpendicular to this has slope . That means the slope of our perpendicular line is
I think it's B. Because of the places...