By what number should \[{{(-8)}^{-1}}\] be divided to get \[{{10}^{-1}

1.	By what number should \[{{(-8)}^{-1}}\] be divided to get \[{{10}^{-1}}\]?
A.	\[\frac{4}{5}\]
B.	\[\frac{-5}{4}\]
C.	\[\frac{-4}{5}\]
D.	\[\frac{5}{4}\]
Answer» C. \[\frac{-4}{5}\]

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By what number should \[{{(-8)}^{-1}}\] be divided to get \[{{10}^{-1}}\]?

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