et XXX and YYY be the following sets: X = \{\}X={}X, equals, left brace, right brace Y = \{1,2,3,5,8\}Y={1,2,3,5,8}Y, equals, left brace, 1, comma, 2, comma, 3, comma, 5, comma, 8, right brace Which of the following is the set X \cup YX∪YX, \cup, Y?

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.