Check all of the following that are solutions to the system shown below. y = -x 2 - x + 2 and x + y = -2

(2, -4)
(0, -2)
(-2, 4)
(-2, 0)

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 is the name used to describe a graph where for some value of x, there exists 2 or more different values of y?

Layla answer 21 of the 25 questions on his history test correctly.what decimal represents the fraction of problem he answer incorrectly.