9 — Award 1 mark for correct answer. 27^(2/3) = (27^(1/3))² = (³√27)² = 3² = 9. Alternatively, 27^(2/3) = (27²)^(1/3) = (729)^(1/3) = 9. B is incorrect — result of 27 × (2/3). C is incorrect — error in applying fractional index. D is incorrect — this is 3⁴, not 3².

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Evaluate 27^(2/3)

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