Answer:
D
Step-by-step explanation:
Using the rule of radicals
= 
×
⇔ 
Given
× 
=
× 
=
× 
Cancel
on numerator/ denominator
=
× 
=
× 
Cancel
on numerator/ denominator, leaving
=
→ D
ANSWER
C. 7
EXPLANATION
We want to evaluate

We use the order of operations PEDMAS.
Dealing with the parenthesis first,we have

Note that:

and

Our expression now becomes:

Next, we add to get:

We finally subtract to get,

The correct answer is C
Answer:
Non proportional
Step-by-step explanation:
y = mx = proportional
y = mx + b = non proportional
y = mx + b
y = 9/3x + b = non proportional
Hope that helps!