Answer:
9
Step-by-step explanation:
900%=900/100=9
Hello,
Please, see the attached file.
Thanks.
Answer:
a+8
Step-by-step explanation:
"sum" tells you to add the two numbers together.
C because that’s where the lien is going
The simplified expression of
is 
<h3>How to simplify the expression?</h3>
The expression is given as:

Divide 162 and 2 by 2

Take the square root of 81

Apply the quotient rule of indices

Evaluate the difference

Take the square root of x^18

Hence, the simplified expression of
is 
Read more about expressions at:
brainly.com/question/723406
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