answer this with an explanation if you can

Answer:
B. about 40 miles
Step-by-step explanation:
We need to find the miles traveled per hour. We can do this by taking the total number of miles traveled and divide it by the time it took to travel that distance. Converting 7 and 3/4 hours to decimals is 7.75 hours.
328.9 miles / 7.75 hours = 42.44 miles/hour
The closest answer is B, about 40 miles.