The answer is 0.9 because if you divide 0.018 and 0.02 you would get 0.9
Another expression for the given rational function is 
<h3>Indices expression</h3>
Given the rational function expressed as:
x = √rs
We can reconstruct the expression by writing it using exponents as shown;

Separate to have:

Hence another expression for the given rational function is 
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Answer:
3 TIMES 5
Step-by-step explanation: