Suppose Roberto, Travis and Deandre go to a donut shop. Roberto buys 6 amaretto pumpkin, 6 black forest and 8 cotton candy donuts and ends up spending $48.70. Travis gets 5 of the amaretto pumpkin, 6 black forest and 6 cotton candy donuts for a total cost of $41.33. Lastly, Deandre spends $31.67 on 4 amaretto pumpkin, 4 black forest, and 5 cotton candy donuts. Write this scenario as a system of equations, then solve that system using an augmented matrix and RREF on your calculator before answering the question below. How much does a single amaretto pumpkin donut cost? Round your answer to 2 decimal places.