Can someone help me with this, It isn't mandatory for me to do but my mom's forcing me to and I suck at algebra 3

Do some research and find a city that has experienced population growth. determine its population on january 1st of a certain year. write an exponential function to represent the city’s population, y, based on the number of years that pass, x after a period of exponential growth. describe the variables and numbers that you used in your equation.

Precalculus question, image attached.

What’s 8y+48 and factor each expression completely