Simplify Write the Answer Using Positive Exponents Only $\left( \frac { 2 x ^ { - 1 } } { 9 y ^ { - 1 } } \right) ^ { - 3 }$

question 378

Multiple Choice

Simplify. Write the answer using positive exponents only.
- $\left( \frac { 2 x ^ { - 1 } } { 9 y ^ { - 1 } } \right) ^ { - 3 }$

• A) \(\frac { 729 x ^ { 3 } } { 8 y ^ { 3 } }\)
• B) \(\frac { 8 x ^ { 3 } } { 729 y ^ { 3 } }\)
• C) \(\frac { 729 y ^ { 3 } } { 8 x ^ { 3 } }\)
• D) \(\frac { 8 x ^ { 13 } } { 729 y ^ { 13 } }\)

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