Final answer:
The hexadecimal expansion of the base ten number 11259375 has six digits.
Step-by-step explanation:
To find the number of digits in the hexadecimal expansion of a base ten number, we first need to convert the number to hexadecimal. The hexadecimal number system uses 16 different digits, 0–9 and A–F. By converting 11259375 to hexadecimal, we get AB654F. The number AB654F has six digits in its hexadecimal expansion.