Achemist working on a flu vaccine needs to mix a 20% sodium iodine solution with a 30% sodium iodine solution to make a 40 mil mixture. write the amt of sodium iodine in the mixture (s) in the mixture in mil, as a function of mil of the 20% solution used (x).

Merrida uses a pattern in the multiplication table below to find ratios that are equivalent to 7: 9. if merrida multiplies the first term, 7, by a factor of 6, what should she do to find the other term for the equivalent ratio? multiply 9 by 1. multiply 9 by 6. multiply 9 by 7. multiply 9 by 9.