For Sale: Used Precalculus 7th edition (Cohen/Lee/Sklar). This is the loose leaf version offered at the ISU bookstore and is in a binder.

　　This book is made use of at ISU for classes:.

　　Math 1143 - College Algebra,.

　　Math 1144 - Trigonometry,.

　　Mathematics 1147 - Precalculus,.

　　This book was utilized for one term only and is in great condition-- no rips, spots, missing out on pages etc

　　. Sells at the university book shop for $130.00!

　　Thanks for looking.