A brewery has the capability of producing a range of beers by blending existing stocks. Two beers (suds and premium) are currently available, with alcohol concentrations of 3.5% for suds and 5.0% for premium. The manufacturing cost for suds is $0.25/gal, and for premium it is $0.40/gal. In making blends, water can be added at no cost. An order for 10,000 gal of beer at 4.0% has been received for this week. There is a limited amount of suds available (9000 gal), and because of aging problems, the brewery must use at least 2000 gal of suds this week. What amounts of suds, premium, and water must be blended to fill the order at minimum cost?