Asap! plz 1. what important city prospered in the yellow river valley? what was unique about the buildings in this city? why did this city prosper? what was the cause of its decline?

1. Anyang The capital city

All the others I have no idea..

The four river valley civilizations were the Tigris & Euphrates Valleys, the Nile River Valley, the Indus River Valley, and the Yellow River Valley. Civilizations developed around rivers because their waters provided places to hunt and fish. Also, as the rivers flooded, the lands around them became fertile. I got this off a website hope i could help out

a standing committee

explanation:

for this case we have the following equation:

we apply distributive property to the terms within parentheses.

subtracting 2 on both sides of the equation: