Looking for jobs and a better climate, people move out of town at a rate of 3% of its population every year. if the town had 7000 people in the year 2010, in the year 2019, it's population will be

The initial population of the town is 7000, rate of reduction is 3%, thus the function modeling the new population will be given by:
f(t)=7000(0.97)^t
thus since our t=0 is in the year 2010, in the year 2019, t=19. The new population will be:
f(19)=7000(0.97)^19
f(19)=3,924.29
Thus the estimated population will be 3,924.29