HELP PLEASE! I don't understand how to do the problem! Please help thanks(:

The problem is:
your bike tire has a radius of 14 inches. If your tire makes 100 revolutions, how many feet does your bike travel?
THANKS! :D

C = pi * d

C = 3.14 * 28 = 87.92 inches

87.92 * 100 = 8,792 inches

8,792 / 12 = 732.67 feet