Answer:
Explanation:
To find the average rate of change in miles per hour for the family's road trip, you need to know the total distance they traveled during the 20 hours.Let's assume the family traveled a total distance of "D" miles during their road trip.Average rate of change (in miles per hour) = Total distance (in miles) / Total time (in hours)In this case:Average rate of change (in miles per hour) = D miles / 20 hoursWithout knowing the total distance they traveled (D), we cannot calculate the average rate of change in miles per hour. To find their average speed, you would need to know the total distance covered during the trip.