Answer:
421.875
Step-by-step explanation:
because the formula of the rectangular prism is l*w*h
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 
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Answer:
Multiply the base by the exponent
Step-by-step explanation:
Answer:86
Step-by-step explanation
140-(16+24+5+9) 140-54 = 86