D Question 13 1 pts 6 (b) Write the exponential model in the form P(t) = a ekt. According to this model, what is the growth rate of the population? Your answer should be accurate to four significant figures, and expressed as a percentage. This means that if you obtain k=0.045678, you should type 4.568% D Question 14 1 pts 6 (c) Use the model to estimate the town's population (to the nearest integer) on January 1, 2040. D Question 15 1 pts 6 (d) Estimate the year when the town's population first exceeds 120,000