Ecologists estimate that, when the population of a certain city is x thousand persons, the average level L of carbon monoxide in the air above the city will be L ppm (parts per million), where: L = 10 + 0.4x + 0.0001):2 The population of a particular city is estimated to be x thousand persons, 2' years from the present, where: x = 725 + 24: + 0.5:2 1, Find the rate of change of carbon monoxide with respect to the population of the city, Rate of Change = 2, Find the rate of change of the population with respect to time when I = 5. Rate of Change = 3. Find the rate of change of carbon monoxide with respect to time when I = 5. Rate of Change =