Instruct: Classify the given review into positive or negative sentiment.
Query: Save Your Money

The 9th Edition CERM contains practice problems in it but no solutions. This book contains the same problems as those shown in the 9th Ed. CERM, and also contains the solutions. However, the solutions do not always give a clear indication as to why the method was chosen to solve the problem. Sometimes an equation is manipultated to solve the problem but the explanation is left out as to why that equation works, which leaves you to look through another reference book to confirm that it does or else believe the author but remain uncertain how he arrived at the new manipulated equation. There are definitely other reference materials out there that are better study guides and make better use of one's study time.