A candle maker plans to make 30 orange candles. She mixes wax to create a specific shade of orange. The ratio of each color in her mixture is shown below: 2 parts red wax 5 parts yellow wax 3 parts white wax. The candle maker needs 1 quart of orange wax for every 6 candles . How much yellow wax will the candle maker need to make all 30 candles ?