The population of Texas in 2000 was about 20.852 million people. The function p(n) = 20.852(1.02071)n estimates the population where n = 0 corresponds to the year 2000. Which is a reasonable estimate in millions of what the population of Texas will be in 2020?
 1) 21.284
 2) 31.420
 3) 41.740
 4) 49.842