Answer:
224 pi
703.36 either might be in your answer list.
Explanation:
Givens
r = 8 inches
rotations = 14
Formula
D = 14*C where C = 2 pi r
Solution
D = 14 * (2 pi * 8)
D = 224 * pi One possible answer
D = 224 * 3.14 = 703.36 inches Another possible Answer