I'm selling a lightly used paperback copy of Precalculus 6: Mathematics for Calculus, the book needed for Math 150. Just general wear on covers, corners folded a little. Asking $40, probably the best used price for this textbook, when counting shipping on other sites. And, you can see its condition for yourself and know what you're getting. 

I'm not sure if this is still in use: I'm also selling the Chem 101/Chem 102 bookset (bought Fall 2014), which includes the textbook and solutions manual. Very lightly used, some highlighting in first few chapters of the textbook and then general wear on the covers. No set price yet, willing to discuss.

Email me at adart1@umbc.edu or Comment if interested, I'm on campus until Wednesday late afternoon.