In the year 1950, the world population was 2.56 billion people. In 1960, the population grew to 3.04 billion. (a) Assuming that the population obeys the law of uninhibited constant growth, find a formula for the population for any time t. (b) According to your model, what should the population be in the year 2020. Compare with the current population. (c) What population does your model predict in the year 2030?

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