Answer:
A nation that typically has higher average income, slow population growth, and many different types of economic activity
Explanation:
This is because a developed nation would be a nation that has been founded for more than 300 years (I think). They would have more population and economic activity due to the fact that it has been founded for a very long time. Meaning that growth and economic activity have been going on for centuries.
The main reason for the wall's construction had always been defense. Since China's first dynasty, the empire faced a near-constant threat of attack from the nomadic tribes to the north. This included those famed Mongols as well as lesser-known groups like the Xiongnu and the Göktürks.
Answer:
it's 200
Explanation:
I searched it on the internet
first 421÷ by pi
then the answer divided by 2
you divide the answer by 2 to find the radius because the radius is half the diameter
