A nutritionist is designing a new breakfast cereal, using wheat germ and enriched oat flour as the basic ingredients. The given chart shows the nutritional information and costs per ounce. The nutritionist wants each serving of the cereal to have at least 7 milligrams of niacin, 9 milligrams of iron, and 1 milligram of thiamin. How many ounces of wheat germ and how many ounces of enriched oat flour should be used in each serving to meet the nutritional requirements at the least cost?

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Oat Flour Wheat Germ 3 mg 2 mg Niacin 3 mg 3 mg Iron .25 mg 5 mg Thiamin $.08 S.06 Cost