The "Numbers, Ratios, and Speed" section is unused and has been stored at home. It is unmarked, but there are some bent/folded areas on the cover. (See photo 6) The "Figures and Probability" section has been opened to about 20 pages, but most pages are unused. Pencil markings have been erased, but there is one instance of pen writing that could not be erased. (See photo 8) In addition, there are two pages with wrinkles from attempts to erase with an eraser (See photos 9 and 10). The answer booklet has been removed from the main book. I would be happy to sell this to someone who understands that it is a used item.