I need help on this I’m in a test right now .

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

Which equation represents the function on the graph?

Find the nonpermissible replacement for binthis expression.b2/5b +5