Get your math on with this instructor’s edition of Precalculus by Sullivan. Whether you’re taking a class or just want to exercise your mental faculties, this book has all the questions and answers! I didn’t look at every single page, but as I flipped through I didn’t see any pencil marks or writing on the pages. The outside hardcover is a little worn, but the inside is pristine. Take your crossword puzzles to a new level and try some math quizzes instead!
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