HELP PLEASE it should be easy for you guys! i just don’t get 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?

You love to play soccer! you make a shot at the net 8 times during a game! of those 8 attempts, you score twice. what percent of the time did you score?

Describe a situation where it would be beneficial to round decimals to the nearest dollar. explain why you would use rounding in that situation.