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In 2000, the world population was estimated to be 6.124 billion people. In 2005, it was 6.515 billion.
a. Write an exponential growth equation to represent the population y in billions t years after 2000. Round the growth rate to 5 decimal places.
b. Use the equation to predict the year the population would reach 7.5 billion people.
Answers: 2
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