Problem: Western's rugby team scored 27 points in their last game. All their points came from these three ways of scoring: A try is worth 5 points. After scoring a try, a team can attempt a conversion, worth 2 points. A drop goal is worth 3 points. Part 1: List all the ways they could have scored their 27 points. Part 2: Explain your strategy for making sure you haven't missed any possibilities.