And show workout so i can know how to understand it (and both questions)

Plz which expression is equivalent to the expression below?

Complete the statements about the system of linear equation respresented by the tables the equation respented the left table is

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.