Selling MATH 115 ($30), CHEM 31X ($30), BIO 41 ($90), BIO 42 ($20)

I bought a brand new MATH 115 book online, but I dropped the class. It's still in the Amazon packaging.

MATH 115
Elementary Analysis: The Theory of Calculus, Kenneth Ross, $30

I'm also selling some books I used from previous quarters. They are all in very good condition.

CHEM 31X
Chemistry: The Science of Change (4th), Oxtoby/Freeman/Block, $30

BIO 41
Biochemistry (6th), Berg/Tymoczko, Stryer, $90
Genetics, Biochemistry and Molecular Biology, $30

BIO 42
The Cell: A Molecular Approach (4th), Cooper/Hausman, $20