Josie is playing a video game in which she establishes and builds up a city. The population of this city is currently 93,900 people, a number that increases 15% every year. What would the population be in 4 years?

In 4 years the population will be 164,232 people.

This is an example of exponential growth. We are multiply the population repeatedly by 1.15 because it is being increase by 15%.

We can simply write and evaluate the expression below to get the correct answer:

93900 (1.15) ^4