Answer
Average Speed = 68 miles per hour
Explanation
Average speed is given as
[tex]\text{Average Sp}eed\text{ = }\frac{Total\text{ distance travelled}}{Time\text{ taken}}[/tex]For this question,
Total distance travelled = 476 miles
Time taken = 7 hours
Average Speed = (476/7) = 68 miles per hour
Hope this Helps!!!
