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3. The population of a small town is modelled by the function P(t). 20(4+3) 2t+5 where P(t) is the population, in thousands, and t

3. The population of a small town is modelled by the function P(t). 20(4+3) 2t+5 where P(t) is the population, in thousands, and t is time, in years, since the start of 1990. Is the population currently increasing or decreasing? Justify your answer. (4 marks)

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