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Re: Is (7+x)/(8+x) ≥ 7/8?

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Is (7+x)/(8+x) ≥ 7/8?

The question transforms to: is \frac{x}{x+8}\geq{0}. This equation will hold true for x<-8 and x\geq{0}

(1) x <= 0. Not sufficient.
(2) x >= 0. Sufficient.

Answer: B.

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