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If \(x\) and \(y\) are positive, is \(81^3=27^{y-x}?\)
(1) \(|y-x|=4\)
(2) \(2y=8x\)
Answer: C
Source: Manhattan GMAT
(1) \(|y-x|=4\)
(2) \(2y=8x\)
Answer: C
Source: Manhattan GMAT
