Final answer:
The hours Jim drives are represented by 'x - 2' because he starts 2 hours after Todd, which is symbolized by subtracting 2 from the duration Todd drives.
Step-by-step explanation:
When Assume Todd drives for a certain number of hours, let's define x as the number of hours Todd drives. Since Jim left 2 hours later than Todd, we need to subtract these 2 hours to represent the hours that Jim drives. Therefore, out of the given options, the correct representation for the hours Jim drives would be x - 2, which means Jim drives for 2 hours less than Todd.