Final answer:
The racecar driver can drive approximately 551.25 km in 2.25 hours.
Step-by-step explanation:
To find out how far the racecar driver can drive in 2.25 hours, we can use the formula:
distance = speed x time
Given that the racecar driver drove 315 km/h in 1.75 hours, we can plug in the values:
distance = 315 km/h x 1.75 hours
Calculating this, we get:
distance = 551.25 km
Therefore, the racecar driver can drive approximately 551.25 km in 2.25 hours.