Can someone show me the formula for this? And help explain a little bit please? No links please I cannot open them :)

What are the costs and benefits of leaving home after high school?

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?

The fairies in disney's sleeping beauty are named fand maleficent. which name contains a root meanina. florab. faunac. merryweatherd. maleficent