Introduction: types of agribusiness decisions, quantitative tools used in decision making, decision making process, quick review of calculus. Unconstrained Optimization: univariate case, multivariate case, first order conditions, second order conditions, and Hessian Matrix. Constrained Optimization: general formulation, optimization with equality constraints, lagrange method, optimization with inequality constraints, Kuhn-Tucker conditions, and bordered Hessian Matrix. Linear Programming: general formulation, LP standard form, and the graphical solution method.