3,4,6

It seems like you need help with Russian legislative topics outlined in questions. Here’s a brief overview: 3. The question asks to demonstrate whether elections are a form of public authority. You'd need to explain how elections are part of the democratic process and how they contribute to the formation of government organs. 4. This question is about understanding proportional and majoritarian electoral systems. You’ll want to discuss the main features of each system, how they function, and give examples of where they are used. 6. This question references the Federal Law regarding Presidential elections in Russia and seeks an explanation of the conditions under which a person cannot be elected President of the Russian Federation. Common reasons might include age restrictions, term limits, or citizenship requirements. If you need further details on any of these points, feel free to ask!