Answer:
it seems like you take the price of breakfast tea and divide it(since she is getting a half bag). then take 9.50 x 2 since she is buying 2 pounds of pumpkin spice coffee. then add those two together. next see how many pounds of dark roast she can get before going over the 60$ limit.
i'm not sure how to graph the solution though. hope this helps a little
Explanation: