The average speed of one race car driver was 151.89 miles per hour, while the average speed of another driver was only 142.48 miles per hour. how much faster was the first driver

9.41 miles per hour.

Step-by-step explanation:

Since, Here The average speed of one race car driver, miles per hour

And, The average speed of another driver, 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 =  

= 151.89-142.48= 9.41 miles per hour.

the answer will be b x² +x-1

step-by-step explanation: