х(в квадрате)+1(все это по знаком корня)=2.5

через 16 років Семен буде втричі старший ніж тепер. Скільки років йому тепер

Punks are members of a movement among certain young people in the 1970s and 1980s.They were opposed to the values of a money-based society .Their protest was expressed in loud violent music and strange clothes. Nowadays you can also see punks in the streets of big European cities . Punks usually have pal and unhealthy look.They have brightly dyed spiky hair and a lot of tattoos and piercings. They also enjoy wearing T-shirts with aggressive slogans.Black tight trousers leather jackets and Doc Martens boots are popular with punks. Very often they customize their leather lackets with studs and safety pins. Перевевиде текст)