Math in Focus: Singapore Math Volume B Grade 7 by Marshall Cavendish is a hardcover textbook designed for high school students studying mathematics. Published in 2012 as part of the Math in Focus series, this textbook covers various mathematical topics in English language. The author, Singapore Math, provides instructional materials tailored for beginner and intermediate levels, making it suitable for students looking to deepen their understanding of mathematical concepts. This textbook is a valuable resource for students seeking to enhance their mathematical skills and knowledge.