Math 51 Linear Algebra by Levandosky: $45 ($70 used at bookstore)
Econ 106 World Food Economy Course Reader: $30 ($80 new)
Physics 41,43,45 Physics for Scientists and Engineers by Knight (1st Edition all volumes) + solution manual + workbook + course reader: $25 (for all)
PRS Clicker: $25 (for Econ, Physics classes)
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