Used Saxon Calculus with Trigonometry and Analytic Geometry (Second edition) by John H. Saxon Jr. and Frank Y. H. Wang set of FIVE books including the following: Student hardback textbook, Solutions Manual, Answer Key, and two Homeschool Testing Books with tests and answers. The Answer Key has no writing in it. The other books have numerous instances of writing for clarification/explanation of concepts. Photos give evidence to some of these instances. Solutions Manual shows the most wear as depicted in the photos as well. Items from a smoke-free home. FREE SHIPPING!