Vaillin (used to flavor vanilla ice cream and other foods) is the substance whose aroma the human nose detects in the smallest amount. The threshold limit is 2.0x10^-11 g per liter of air. If the current price of 50 g of vaillin is $120, determine the cost to supply enough vanillin so that the aroma could be detected in a large aircraft hanger with a volume of 5.0x10^7 ft^3