&lt;span style=&quot;color: rgb(44, 62, 80); font-family: Lato, &amp;quot;Helvetica Neue&amp;quot;, Helvetica, Arial, sans-serif; font-size: 15px;&quot;&gt;Mathematics 9 is written by Dr. Karamat H. Dar and Prof. Irfan-ul-Haq and this book is published by Carvan Book House, Lahore, Pakistan. This book consist of 302 pages and there are 17 units. Notes of Unit 1 and 3 are provided by&amp;nbsp;&lt;/span&gt;&lt;b style=&quot;color: rgb(44, 62, 80); font-family: Lato, &amp;quot;Helvetica Neue&amp;quot;, Helvetica, Arial, sans-serif; font-size: 15px;&quot;&gt;&lt;a href=&quot;https://www.mathcity.org/people/moin&quot; class=&quot;wikilink1&quot; title=&quot;people:moin&quot; data-wiki-id=&quot;people:moin&quot; style=&quot;color: rgb(24, 188, 156); text-decoration-line: none;&quot;&gt;Engr. Moin Latif&lt;/a&gt;&lt;/b&gt;&lt;span style=&quot;color: rgb(44, 62, 80); font-family: Lato, &amp;quot;Helvetica Neue&amp;quot;, Helvetica, Arial, sans-serif; font-size: 15px;&quot;&gt;. We are very thankful to him for providing these notes.&lt;/span&gt;