Answer: False
Explanation:
Let's find the circumference of the tire
C = pi*d
C = 3.14*31
C = 97.34
The perimeter of the tire is about 97.34 inches.
When the tire does 1 revolution, the car moves forward about 97.34 inches. This is because the tire will roll around the edge, i.e. move along the perimeter.
In four revolutions, it rolls forward about 4*97.34 = 389.36 inches.
If you used the calculator's stored value of pi, then the answer is about 4*31pi = 389.5575
This is close to 390.50, but not quite there. It's not clear what steps or calculations Steven did to get his answer.
