Answer:
C. ±square root of 30
Step-by-step explanation:
Apply the square root function to both sides of the equation:

_____
The absolute value equation has two solutions. They match choice C.
Answer:
b=3
Step-by-step explanation:
yes
Answer:
2
Step-by-step explanation:
Distance = 3 units .....................
No it is not proportional because y=3x and if you replace x with 2x y=3(2x) = 2(3x) = 2y
y= 2y BUT if you replace x with 2x in y= 3x + 5 youll get 2y for y meaning, its not proportional.