Answer:
Assuming a constant rate of travel that is the same as yesterday, 416 miles in 8 hours.
Step-by-step explanation:
We are assuming that the first day's rate will be used in the second. After that, it is a proportions question. We divide 312 by 6 to get 52 miles an hour. Then, we multiply 8 hours by 52 miles to get 416 miles 8 hours.