Part 1 of 2 A company is developing a new additive for gasoline. The additive is a mixture of three liquid ingredients, I, II, and III. For proper performance, the total amount of additive must be at least 9 oz per gal of gasoline. However, for safety reasons, the amount of additive should not exceed 18 oz per gal of gasoline. At least - oz of ingredient I must be used for every ounce of ingredient II, and at least 1 oz of ingredient III must be used for every ounce of ingredient I. The costs of I, II, and Ill are $0.40, $0.32, and $0.72 per oz, respectively. (a) Find the mixture of the three ingredients that produces the minimum cost of the additive. The minimum cost mixture has oz of ingredient I, oz of ingredient Il, and oz of ingredient III. (Type an integer or a decimal. Round to three decimal places as needed.)