I can help but first answer my algebra question
Answer:
herd immunity is real. It is where you put a bunch of sick people together so that way they get antibodies sooner It did work in the old days. With the new virus, you might not want to try it.
If you look it up, it will give you the approximate value of SA= 2205.4. I really don’t know if this is right because surface area is of a 3D object and area alone is for a 2D object. You may want to look up the proper formula.
Answer:Balanced regional development is an important condition for the harmonious and smooth development of a country.
Explanation: