Book excerpt: This book contains solutions to the Practice Questions that appear at the ends of chapters in my book Options, Futures, and Other Derivatives, 9th edition, Global Edition. The questions have been designed to help readers study on their own and test their understanding of the material. They range from quick checks on whether a key point is understood to much more challenging applications of analytical techniques. Some prove or extend results presented in the book. To maximize the benefits from this book readers are urged to sketch out their own solutions to the questions before consulting mine.