Heidi eröffnet ein Sparkonto und zahlt 1500 euro ein. Die bank verzinst ihr guthaben mit 3,2%. Am Jahrsende erhält Heidi 30 euro Zinsen. Wann hatte sie das Konto eröffnet? Ich muss nur weißen wie man da rechnen kann.

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?

Players on the school soccer team are selling candles to raise money for an upcoming trip. each player has 24 candles to sell. if a player sells 4 candles a profit of$30 is made. if he sells 12 candles a profit of $70 is made. determine an equation to model his situation?

What is the slope of the line (-7,2) (4,6)