dP = KP(400-P) with k constant. Its population in 1960 was 100 million and was then growing at the rate of 3 million per year. Predict this country's population for the year Suppose that the population P(t) of a country satisfies the differential equation 2020. dt This country's population in 2020 will be million. (Type an integer or decimal rounded to one decimal place as needed.)