Pls help am trying to pls with the boys this summer

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.

Proportions in triangles solve for x

Solve the equation for b: a= (1/2)(b)(h)