We are told the population of a town grows at a rate of e to the 1.2t power minus 2t people per year, where t is the number of years. At t equals two years, the town has 1,500 people. So first they ask us, approximately by how many people does the population grow between t equals two and t equals five, and then what is the town's population at t equals five years? And if we actually figure out this first question, the second question is actually pretty straightforward. We figure out the amount that it grows and then add it to what we were at at t equals two, add it to 1,500. So pause this video and see if you can figure it out. So the key here is to appreciate that this right over here is expressing the rate of how fast the population is growing and we've been seen in multiple videos now, let me just draw, do a quick review of this notion of a rate curve.