Plz help worth 26 pt and brainlest

What is the product? (x2+3y+7) [yy+1)

All per-unit concepts rely on ratios,meaning,to provide a type of measurement

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.