Answer:
D.60.86 miles/hour
Step-by-step explanation:
This can be solve as a rule of three problem.
We have that the person traveled 426 miles in 7 hours. Each option is in miles/hour, so the problem asks you how many miles the person traveled in 1 hour. So
426 miles - 7 hours
x miles - 1 hour
[tex]7x = 426[/tex]
[tex]x = \frac{426}{7}[/tex]
[tex]x = 60.86[/tex]
So the correct answer is:
D.60.86 miles/hour