Answer:
A General Note: The Product Rule for Simplifying Square Roots. If a and b are nonnegative, the square root of the product a b \displaystyle ab ab is equal to the product of the square roots of a and b.
Step-by-step explanation:
Answer:

B. 30
Step-by-step explanation:
First, you multiply by 5 from both sides of equation.

Simplify, to find the answer.

, which is our answer.
You might want to see what other people say but I think that it is 40
Answer:
3
Step-by-step explanation:
4.5 + 4.5 = 9
9/3 = 3