Answer:
6
Step-by-step explanation:
Since you have y alone on one side of the equation......
Use substitution and plug in 1/2x-4 for y in the other equation.

Distribute

Combine like terms

Add 8 to both sides

Divide by 4
and 
Plug this value in for x

Simplify

Multiply everything by 8 and simplify

Divide.....

Your answers are:

Answer:
#5A=6
5B=4
Step-by-step explanation:
Answer:
(C) reflection of f(x) = 5x² across the x-axis and translated down 2 units
Answer:
x=0
Step-by-step explanation:
answer x=0