Solve the problem.In 1998, the population of a given country was 21 million, and the exponential growth rate was 3% per year. Find the exponential growth function.
A. P(t) = 21e0.03t, where P(t) is in millions and t is the number of years after 1998.
B. P(t) = 21e0.03, where P(t) is in millions and t is the number of years after 1998.
C. P(t) = 21e3t, where P(t) is in millions and t is the number of years after 1998.
D. P(t) = 210.03t , where P(t) is in millions and t is the number of years after 1998.
Answer: A
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