The population of a city was about 75,000 in 2020. The population of the city is expected to increase by 2.3% each year. Write a function to model the population of the city. I NEED HELP PLS IM IN TTHE EXAM IR ABT TO FINISH

You just purchased two coins at a price of $670 each. because one of the coins is more collectible, you believe that its value will increase at a rate of 7.1 percent per year, while you believe the second coin will only increase at 6.5 percent per year. if you are correct, how much more will the first coin be worth in 15 years?