The rate of change of the population of Calcville can be modeled by the function P'(t) = 8.1e0.014t where t is the number of years since 1960. In 1980, the population of Calcville was 394096. Find the function P(t) that models the population of Calcville: P(t) = Estimate the population of Calcville in the year 2020: If f'(x) = 8x + 2x +5 and f(1) = 4, find f(x). f(x) = Question Help: Post to forum Submit Question