Im on a time limit! could someone me with this?

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

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

The interior angles formed by the side of a hexagon have measures of them up to 720° what is the measure of angle a