This full solution covers the following key subjects: . This expansive textbook survival guide covers 68 chapters, and 5502 solutions. The full step-by-step solution to problem: 21 from chapter: 10.1 was answered by , our top Math solution expert on 03/19/18, 03:33PM. College Algebra was written by and is associated to the ISBN: 9780321716811. This textbook survival guide was created for the textbook: College Algebra, edition: 9. The answer to “How many are in A and B and C?” is broken down into a number of easy to follow steps, and 9 words. Since the solution to 21 from 10.1 chapter was answered, more than 218 students have viewed the full step-by-step answer.