Answer:
Baxter drives at 57 kilometers per hour.
Step-by-step explanation:
In order to find the answer, you have to use the following formula to calculate the speed:
speed=distance/time
distance=399 km
time=7 hours
Now, you have to replace the values in the formula:
speed=399 km/7 hours
speed=57 km/hour
According to this, the answer is that Baxter drives at 57 kilometers per hour.
