Please Check Work on Two Logarithms Word Problems & Explain How to Graph

THIS PROBLEMS HAS BEEN SOLVED.

Below are two word problems, I am pretty sure I did them correctly (if not please advise on what I am doing wrong), however, I need to graph them as well, and I am so lost. I have went through my text and did some Internet searches but I am not having much luck so if someone could explain how I would graph these, I would really appreciate it.

http://i3.photobucket.com/albums/y63...ra/final_1.jpg
http://i3.photobucket.com/albums/y63...ra/final_2.jpg
http://i3.photobucket.com/albums/y63...ra/final_3.jpg
Thank you very much in advance for your time :)