Simplify the expression. Express the answer so that all exponents are positive. Whenever an exponent is 0 or negative, we assume that the base is not 0.(x5y-1)3

A.
B. x15y3
C.
D.

Answer: A

Mathematics

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A. -0.220 in. B. 0.220 in. C. 0.120 in. D. -0.120 in.

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Simplify. -  -  - 

A. 1
B. 27
C.
D.

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Add or subtract as indicated. + 

A.
B.  
C.  
D.  

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Find the sum.18 + (-21) + (-14)

A. 25 B. -17 C. 53 D. 11

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