The purpose of this course is to introduce undergraduate students to the use of quantitative methods in business decision-making process. The course covers some of the popular quantitative methods developed over the years, explains how they work, and shows how the decision maker can apply and interpret them. This course is applications-oriented - a problem is described in conjunction with the quantitative procedure being introduced. This approach can help to motivate the student by demonstrating not only how the procedure works, but also how it contributes to the decision-making process. The mathematical prerequisite for this text is basics of probability, statistics, and linear algebra. Students will be using R and Excel software to explore a handful of quantitative methods topics. No prior knowledge of R is required.