The formula A= 15.7 0.0415 models the population of a US state, A, in millions, t years after 2000. a. What was the population of the state in 2000? b. When will the population of the state reach 18.7 million? a. In 2000, the population of the state was 15.7 million. b. The population of the state will reach 18.7 million in the year 2004 (Round down to the nearest year.)