Your final answer is going to be 4r + 3r ^2 +7
The answer is a no other option
Answer:

Step-by-step explanation:
I'm going to write it so I can see it better:

You can use the difference of squares formula:

Solve the lower equation first
+12 on each side
7x=51
divide by 7
x=51/7
then use that to solve the upper equation
Domain is inputs, input the domain for x
y=5(-1.2)-2
y=-6-2
y=-8
y=5(0)-2
y=0-2
y=-2
y=5(4)-2
y=20-2
y=18
range is {-8, -2, 18}