What is the perameter of this

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

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?

10% of 1,900,000. show me how you got the answer