I have made an Answer Key for those 14 Additional Problems the prof posted. I have done them as quickly as I can, so please forgive me if there is a mistake. You will see the link to the solutions below.
Besides the two sample midterms they have posted, some profs have also posted an additional set of 14 questions to look at before the exam on Saturday. Make sure you have gone through these 14 questions and the two sample midterms with a finetooth comb. They are undoubtedly feeding you the majority of the exam questions in an effort to get the grades up. Here are those sample exams and questions if you haven't seen them:
