Which astronomer is credited as the first to theorize the planets orbit around the sun?

What factors led to europe's global dominance in economic and political factors? what impacts did that dominance have on other peoples and environments?

Amountain is larger than a hill, with steep sides true or false

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 %.