Answer: 9.41 miles per hour.
Step-by-step explanation:
Since, Here The average speed of one race car driver, [tex]S_1 = 151.89[/tex] miles per hour
And, The average speed of another driver, [tex]S_2 = 142.48 [/tex] miles per hour
Thus, first driver is faster than second driver ( because his speed is greater than that of second)
And, He is faster than second by the speed = [tex]S_1 - S_2[/tex]
= 151.89-142.48= 9.41 miles per hour.