Many teachers upload their own "Methodological Recommendations" (metodicheskie rekomendatsii) which contain the expected results for every practical work in the book.
A brief statement on what was learned (e.g., "The model successfully predicts the population growth trend"). praktikum po informatike 10-11 klass semakin reshebnik
Since there is no single official "answer key" released by the authors, students typically use the following resources: praktikum po informatike 10-11 klass semakin reshebnik
If you are looking for a specific task, they are generally formatted as follows in a "write-up": What is being measured or programmed. praktikum po informatike 10-11 klass semakin reshebnik
For coding tasks (like those in Chapter 2 or 3), searching for the specific task name (e.g., "Prakticheskaya rabota №3 Semakin") on GitHub or Russian forums like CyberForum often yields the source code. Sample Solution Structure