MCR3U Communication Thinking Units 3 - 4 Thinking Task Level Level 1. You are trying to teach a fellow student how to complete the following question. Solve the question while explaining your steps (use full sentences and proper terminology) to help your buddy. [COMM] Question: Find the perimeter of the following figure. 3/15 21 3/15 2. Cookie owns a Cupcake business that is very originally called "Cookies's Cupcakes". The Revenue function for her business can be modelled by the equation R(x) --0.5x2 + 12x and the Cost function can be modeled by C(x) = 4x + 9, where x is the quantity sold, in hundreds, and P(x) is the profit in thousands of dollars. If the profit can be determined by Revenue - Cost , over what domain values will Cookie have sales that bring in a profit? (This means she will do better than just break-even). Solve algebraically and illustrate graphically as well. [THINKING]