Elementary Algebra Structure and Skills by Drooyan, Hadel, Fleming, Fourth Edition. A textbook for students who are beginning study of algebra. It is designed to cover in one semester the equivalent of the first two semesters of high school . Answers are provided for the odd - numbered problems in the chapter reviews and in the cumulative review . All answers in the form of graphs and proofs have also been included for the odd number problems. The answers to the even-numbered problems are available to instructors .