Please help me this geometry question

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?

Divide. –4.2 ÷ 6 = a –0.7 b 0.7 c –7 d 7 me

Use a transformation to solve the equation. w/4 = 8 can you also leave a detailed explanation on how this equation = 32