The adult population of a city is 1,250,000. A consultant to a law firm uses the function P(t) = 1,250,000(1 – e −0.03t) to estimate the number of people P(t) who have heard about a major crime t

The adult population of a city is 1,250,000. A consultant to a law firm uses the function P(t) = 1,250,000(1 – e −0.03t) to estimate the number of people P(t) who have heard about a major crime t days after the crime was first reported. About how many days does it take for 80% of the population to have been exposed to news of the crime?