The population of Mapville started at 80,000 and increased by 15,000 every year. The population of Mathtown started at 4,000 and doubled every year. Which statement below is true? Justify your answer by showing calculations. /8 a) The population of Mapville is always greater than the population of Mathtown. b) The rate of change of the population of Mapville is increasing. c) The rate of change of the population of Mathtown is increasing. d) The population of Mathtown is greater than the population of Mapville after 5 years.