Find the square root of -90

2-digit numbers less than 91 which are 1 less than a multiple of 10

What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?

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.