In the mid-thirteenth century, baghdad was destroyed by which group?
a) persians
b) mongols
c) phoenicians
d) greeks

Why did large numbers of african migrate to the americas

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 %.

What are the answers for the following questions?