Answer:
5.73mL of 50%
Explanation:
Let's say the amount of 50% solution to be used is, y
Therefore 37-y = the amount of 1/200 solution used
The set up will then be,
0.5y +0.05(37-y) = 1/6(30)
0.5y + 1.85 -0.05y = 5
0.55y = 3.15
y= 5.73mL of 50%
The answer is B, the NDC is a 10 digit number, in 3 segments. It's a universal product identifier for human drugs in the U.S. I hope this helps
