A chemist working on a flu vaccine needs to mix a 20% sodium-iodine solution with a 60% sodium-iodine solution to obtain a 50-milliliter mixture. Write the amount of sodium iodine in the mixture, S, in milliliters, as a function of the number of milliliters of the 20% solution used, x. Then find and interpret S(40). ..... The amount of sodium iodine in the mixture, S, in milliliters, is S(x) =|, where x is the number of milliliters of the 20% solution. (Use integers or decimals for any numbers in the expression.) Find and interpret S(40). Select the correct choice below and fill in the answer box to complete your choice. O A. The value of S(40) is milliliters, and it represents the amount of sodium-iodine in the mixture when 40 milliliters of the 20% solution are used. O B. The value of S(40) is milliliters, and it represents the total amount of mixture when 40 milliliters of the 20% solution are used. O C. The value of S(40) is milliliters, and it represents the amount of sodium-iodine in the mixture when 40 milliliters of the 60% solution are used.

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