According to one source the world population can be modeled using the function P t 6 17e0 012t where P t is the world population in billions of people and t is the number of years after January 1st 2000 a Predict the year during which the world population is expected to reach 10 3 billion people year 2043 Not equivalent b Predict the world population on January 1st 2060 Round to the nearest person population 13000000000 I Preview 2043 people Preview 13 000 000 000 people