Answer:
2130 feet per hour
Explanation:
462*60; because your trying to find out how many feet per hour so you have to multiply 462 inches by 60 minutes because 60 minutes= 1 hour.
462*60= 27720
27720/12; because you want to find out how many feet and not inches, so you have to divide 27720 by 12 because there is 12 inches in one foot.
27720/12= 2130
so your answer is 2130 feet per hour. Hope this helps :D