Answer:
Explanation:
The main difficulty of barter system is the lack of double coincidence of wants. In a barter system a person who wants to exchange his goods must find some person who is willing to exchange his commodity with his commodity. Hope that helps!!!
I think it is E nmbut just in case ask your parents
New orleans
boston
philadelphia
nyc
washington
charleston
st. augustine
williamsburg
santa fe
gettysburg
savannah
The answer is 4. (All of The Above)
A wall stands using gravity. It is constantly being pulled down. Many also place them in ways that they dig into the ground, and almost make a socket just for the wall to be placed, using the land that is there. More and more walls are placed and eventually, they make flooring and a roof.
Hope that helped!