Finance optimization:

Choice of Loan Portfolio
Choice of Expansion Project
Family Budget Planning
Financing an Early Retirement
Mean Variance Portfolio Optimization
Optimal Economic Growth
Portfolio Selection
Price Optimization

Chemical engineering:

Chemical Equilibrium
Equilibrium Problem
Process Optimization
Refinery Optimization

Mathematical optimization:

Bid Evaluation
Farm Level Model
Hospital Efficiency
Publicity Campaign
Rigging Elections

General optimization:

Area of Hexagon
Least Squares Curve Fitting
Maximum Likelihood Problem
Structural (Design) Optimization
Trigonometric Optimization
Winding Factor Determination