The “Precalculus 7th Edition Enhanced Edition” by David Cohen and Theodore B. Lee is a comprehensive textbook designed for high school students studying pre-calculus and calculus. Published by Cengage Learning in 2017, this revised edition offers 1184 pages of content in English language. The textbook covers a wide range of mathematical subjects, making it suitable for general and specialized use. This hardcover book, measuring 10.2 inches in height, 8.3 inches in width, and 1.8 inches in length, is a valuable resource for students looking to deepen their understanding of mathematical concepts.