Answer:
$12
Step-by-step explanation:
3x + 9 = 90
3x = 90 - 9 = 81
x = 81/3 = 27
x = 27
Answer:
x=30
Step-by-step explanation:
to find the value of x you have to find K(constant number).

Answer:
4x - 24
Step-by-step explanation:



Answer:
B: x=-2
Step-by-step explanation:
This is because x=-2 is where the parabola is split into two equal halves.