Solve quadratic by square root

What value of x is in the solution set of –5x – 15 > 10 + 20x?

Which of these tables represents a non-linear function?

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.