Effie is selling candles to raise money for new soccer league equipment. a small candle sells for $8 and a large candle sells for $12. the number of large candles effie sells must be greater than or equal to 2 times the number of small candles she sells. she has at most 48 candles to sell. the number of small candles sold is represented by x and the number of large candles sold is represented by y. what is the maximum revenue she can make?