Draw the shape of a barrier island before and after a significant rise in sea level

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 %.

This word for a bug or malfunction was popularized in the 1962 book into orbit by the mercury astronauts

Solve for r in the formula v = ir, when i = 5 and v = 15.