The answer to your question is B!
Have a wonderful day.
Answer:

Step-by-step explanation:
Theoretically, there is not square root of neither 13 nor a negative number so the special symbol is used to represent the square root of a number.
The square root of 75000 is 273.86
19.2740122 fluid ounces = 570 milliliters. I'm positive this really is the answer. :)
Use the concept of Lagrange multipliers.