Write a quadratic function in standard form for given 0. -2 and 7

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.

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?

Can someone answer this question for me