See picture for math work and answer.
Answer:
x=5
Step-by-step explanation:

add 11 to both sides

Divide 4 on both sides

Take the square root of both sides to eliminate the power of two from x

Simplify

Answer:
y=√x+5 -1
the answer is option C,,
x=-7,y=√-7+5 -1=√-2 -1
we can't find the square root of negative values, therefore it displays as error
x=-6,y=√-6+5-1=√-1 -1
same reason
x=-5,y=√-5+5-1=√0-1=-1
x=-4,y=√-4+5-1=√1-1=0
x=-1,y=√-1+5-1=√4-1=1
x=4,y=√4+5-1=√9-1=2
One cost for the first price is $0.16and the second on is 0.14 so the second one is the better deal
Least- 2
Greatest- 12
Median- 7
Lower Q- 4
Upper Q- 8
Range-10
IQR- 4