An approach to predicting the number of scientific personnel is proposed based on the regression model and expert assessment methods that give an opportunity to take into account the intensity of the development of the scientific and technical potential of the Republic. It is necessary to process and analyze examination data, draw up priority methods of future probabilities of Science and technology based on expert assessment, as well as evaluate them and prepare proposals.

In these three theses, the solutions to the problems of business risk calculation and selection of a good supplier, minimization of contract value, supplier selection, and base preparation are shown in industrial enterprises.

The relevance of environmental pollution with heavy metals on a global scale
is primarily explained by the fact that such harmful salts are widely accepted by the human
body and cause great harm to health. Heavy metal salts affect all systems of the body and are
toxic, allergic, carcinogenic, and gonadotropic.

This article shows that today's actual problem is material damage to the environment and nature, and the role of humans in it. Also, the reasons why environmental protection is a global problem today and its prevention are given.

Through this article, we will focus on different views and concepts about the concept of business used all over the world, in particular, the English economist A. Hosking defines the concept of "Business" as follows: "Entrepreneurship is a natural phenomenon of individuals, enterprises and organizations" is the activity of extracting mats, producing goods or buying and selling them, providing services and exchanging them for other goods and services. "or money for the mutual benefit of interested persons or organizations".