Is this correct if not correct me

Name the most appropriate metric unit for each measurement like the mass of cow

Which choice represents the sample space ,s for this event

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?