What is social harmony​

How does the parallax of a nearby object compare to that of an object farther away?

Summary of the impact of the physical environment on settlement patterns and economic activities for ukraine

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 %.