Please answer the blank spots

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 upper quartile in the box plot?

The table represents a function. what is f(-2)? a.-3 b. -1 c.1 d.3