Linear programming is a part of operations research and is used to find the optimal solution.

Paying the urban planning tax is a citizen's duty.

The United Nations Environment Programme is providing solutions to global environmental problems.

He is a person of strong vanity who reads self-improvement books.

He is facing many difficulties due to gender identity disorder.

Flexibility is necessary for success.

This math problem is based on the principle of additivity.

This problem can be solved using the principle of linearity.

The distinctiveness of this project sets it apart from other projects.

It is important to understand the importance of health.