Final answer:
The mathematical symbol that would best fill in the blank to compare the two real numbers in the expression 'VE_18' is B) > (greater than).
Step-by-step explanation:
The mathematical symbol that would best fill in the blank to compare the two real numbers in the expression 'VE_18' is B) > (greater than).
When we use the greater than symbol, it indicates that the first number is greater than the second number.
For example, if we have V = 20 and E = 18, then 'VE_18' would be written as V > E, which means 20 is greater than 18.