Final answer:
The number of gallons of gas in the tank minus 9 cannot be determined without a reference point.
Step-by-step explanation:
To determine whether the number of gallons of gas in the tank minus 9 is less than or more than, we need to compare it to a reference point. Unfortunately, the question does not provide a reference point, so we cannot determine whether it is less than or more than.
Therefore, the answer is (d) Cannot be determined.