This is a textbook for the new curriculum's Charted Mathematics I+A, with content for solid learning from the basics. The answer key is also being sold, as I'm getting rid of it during a thorough cleaning of my parents' house. I had a hand-me-down from my older brother, which I had separated by chapter and used extensively for writing notes and memorization. This one is relatively clean, but there are some highlighter marks. It's an older book, but please consider it as a second copy for carrying around as a consumable. - Title: Mathematics I+A - Author: Charted - Publisher: Kenkyusha Publishing - Edition: New Curriculum - Format: Charted - ISBN: 978-4-410-14785-0 Thank you for looking.