pre calc question

Question

at the beginning of 2020, the population of Sylvania was 11 million. The population grows by about 2% every year. Assuming this growth rate continues, in what year will the population of Sylvania first reach 17 million?

Give your answer as a whole number (it's a year). You'll want to round down to get the number of the year during which the population first reaches 17 million.

Answer: The population first reaches 17 million in the year 

Answer 1

17/11=e^.02t

t= ln(17/11)/.02=21.766

about 21 years