Math reference book for high school entrance exam preparation, covering functions and geometry. - Series: Master in 10 Days - Subject: Functions - Subject: Geometry - Price: 660 yen - Publisher: Tekken Publishing There are a few places with pencil markings, which have been erased with an eraser. I apologize if I missed anything, as it was a casual check. There are no pen or marker markings. This is the perfect reference book for high school entrance exam preparation. I hope you can use it for your final push. Thank you for looking.