Answer:
9.52 answer of third and all you answer are correct
The second one. The absolute value sign makes all the y values positive, meaning the negative 4 will turn into positive 4.
Answer:

Step-by-step explanation:
We begin with the equation 
In order to get x on the left side, we need to square root both sides. As we are taking the square root of each sides, one of the sides must have a ± added to it in order to make sure that both of the solutions are found.
± 
We can then simplify this
± 
And once more
± 
Which means that our solutions are
