If Angela were to paint her living room alone, it would take 3 hours. Her sister Naomi could do the job in 5 hours. How many hours would it take them working together? Express your answer as a fraction reduced to lowest terms, if needed.

In the equations, a and b represent the price per night for a room in hotel a and hotel b, respectively, w weeks after september 1 last autumn. what was the price per night in hotel a when it was equal to the price per night in hotel b? a = 240 − 20w b = 320 − 30w

What could explain what happened when the time was equal to 120 minutes

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.