Simplify the Numerical Expression $\left( \frac { 3 ^ { - 1 } } { 7 ^ { - 2 } } \right) ^ { - 1 }$

question 9

Multiple Choice

Simplify the numerical expression. $\left( \frac { 3 ^ { - 1 } } { 7 ^ { - 2 } } \right) ^ { - 1 }$

• A) \(\frac { 3 } { 49 }\)
• B) \(\frac { 9 } { 49 }\)
• C) \(\frac { 49 } { 3 }\)

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