What does the hexadecimal symbol 'A' represent in decimal?

In the hexadecimal numbering system, which is base 16, numerical values are represented using the digits 0-9 and the letters A-F. The letter 'A' in hexadecimal corresponds to the decimal value of 10. This is because the hexadecimal system counts as follows:

• The digits 0 through 9 have the same value in both hexadecimal and decimal (0-9).

• The letters begin at 'A', where 'A' represents the decimal value of 10, 'B' represents 11, 'C' represents 12, 'D' represents 13, 'E' represents 14, and 'F' represents 15.

Thus, when converting the hexadecimal 'A' to decimal, it is understood to equal 10, making it the correct choice.