Which of the following regions of the United States is most affected by hurricanes? A. the Appalachian Mountains
B. the Great Plains
C. the Southeast
D. the Colorado Plateau

Brian's school locker has a three-digit combination lock that can be set using the numbers 5 to 9 (including 5 and 9), without repeating a number. the probability that the locker code begins with a prime number is %. the probability that the last digit of the locker code is an odd number is %.