For example, one is wanting to sell books while the other is wanting to wash people’s cars for money. Proposal number one has a cost for what they would sell the books, but proposal two has a price for what they would wash cars and have an idea of how successful it would be and how much money they could potentially make based on prior experiences. As much as everyone likes reading many more people like having a clean car. In the second proposal they mention getting local teenagers to sign up and help whereas in the first proposal they did not mention who would be in charge and helping out at the library. The first proposal is a huge inconvenience for people who don’t have the time to get out of their car and start looking for books, whereas the car wash is something that people can do on their way to work or on their way to their child’s soccer game, it would take much less time for a car wash than to get out and look for a book you want to