Help I’m not sure of the answer?

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

The average length of a king cobra is 3.7 m. the record length is 1.88 m longer than the average. how long is the record holder?

Hello, i need compare km^2 and km. what's difference in this?