You are considering whether to buy a product. You look at the reviews. Would the following review decrease or increase the chances of you buying the product?
Review title: Very helpful
Product review: This workbook has been a great help for my daughter. She uses it to study for her exams and has done quite well. You must, however, buy the answer key separately. Look for "Algebra 1 Practice Workbook Answer Key", ISBN 0-03-056499-9.
