11. Y An agricutural mill manufactures feed for catte, sheep, and chickens, This is done by mixing the following main ingredients: corn, limestone, soybeas, and fish meal. These ingredients contain the following nutrients: vitamias, protein, calcium, and crude fat. The contents of the nutrients in standard units for cach kilogram of the ingredients are summarized in the following table The mill is contracted to produce 12,8 , and 9 (metric) tons of cattle feed shecp feet. and chicken feed. Because of shortages, a limited amount of ith. soybeans, and 6 tons of fish meal. The price per kilogram of these respectively, $0.20,$0.12,$0.24, and $0.12. The minimal and maximal the various nutrients that are permitted is summarized below for a kiler the cattle feed, the sheep feed, and the chicken feed