Suppose that from a group of 30 athletes, 17 compete in a 100-meter race, 8 compete in a 200-meter race, and 4 compete in both races. How many athletes don't compete in either of the
two races?

The sum of two numbers is 86, and their difference is 20. find the two numbers

Me, prove a quadrilateral with vertices g(1,-1), h(5,1), i(4,3) and j(0,1) is a rectangle using the parallelogram method and a rectangle method.

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.