Why do people like making fun off people? just why?

By what percent will the product of two numbers change, if the first number increases by 70%, while the second number decreases by 40%.

Asoccer team has played 25 games and has won 60% of the games it has played. what is the minimum number of additional games the team must win in order to finish the season winning 80% of the games it has played?

Tissues that carry food water and nutrients throughout the plant