6 1 point D A study on a poultry farm was conducted to determine the optimal percentage of vitamin supplement necessary to maximize turkey growth. According to the data presented below, what percentage of vitamin supplement should be used? Turkey Growth Data Average % Weight Gain 4 10 16 222 24 OOOO 14 12 2 4 6 8 10 12 14 16 18 Percent of Vitamin Supplement 20 22 24

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