This book takes you by the hand and guides you confidently towards passing exams in the mathematics foundational course of your studies. The authors are two experienced university professors who are deeply familiar with the apprehensions and uncertainties that business administration students have regarding mathematics, thanks to their long-standing work at the highest educational institutions in the country. Written in simple language, understandable in methodology, and stimulating with many thoroughly worked-out examples, this book is highly recommended as a companion in the foundational business administration studies. Reader services and online assistance are, of course, included. The 4th edition incorporates calculation methods for linear optimization (Simplex method). Additionally, the book has been significantly expanded with the topic of probability/statistics. Exercises and solutions to the textbook are provided in a separate booklet.