To find the radius of the circular track in feet, we can use the formula for the circumference of a circle:
Circumference = 2πr
Given that the circumference of the track is 0.3 mile, which is equal to 0.3 * 5,280 feet, we can set up the equation:

Simplifying the equation using 3.14 as pi:

Dividing both sides of the equation by 6.28:
r = 1,584 / 6.28
r ≈ 252.23
Answer:
Rounding to the nearest hundredth, the radius of the track is approximately 252.23 feet.