Please read parts a) and b) carefully. Please show all of your work step by step

Please read parts a) and b) carefully. Please show all of your work step by step. The instructor did not specify which to use (Microsoft Word or Microsoft Excel), but if you find one better to use than the other, please do so. This is my final exam and I hope to receive a 100. You are the only writer I come to for any help. Thank you so much.