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A colony of rats is transplanted into an island environment by stowing away on a cargo ship. The initial population is 450 and it grows

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A colony of rats is transplanted into an island environment by stowing away on a cargo ship. The initial population is 450 and it grows with a doubling time of 9 months. Assuming that the growth rate stays the same, what will the population be in 15 years? 1429 rats 1,638,400 rats 14,745,600 rats 471,859,200 rats

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