The opposite sum of a number refers to the fact that the opposite of a sum of real numbers is equal to the sum of the opposite. Base on that, the answer would be letter D. -(-17+5) = 17+(-5). I hope you are satisfied with my answer and feel free to ask for more
The Zhou created the Mandate of Heaven: the idea that there could be only one legitimate ruler of China at a time, and that this ruler had the blessing of the gods. They used this Mandate to justify their overthrow of the Shang, and their subsequent rule.
Yes due to lack of security and poor decision making during the war
