Explain Why do you think West and East Africa saw several societies develop within the same geographic areas?

Flourishing of trade

Explanation:

The West and East Africa saw several societies develop within the same geographic areas because of the availability of natural resources which they traded with one another. African city-states and empires gained wealth through developing and trading resources. The empires flourished in West Africa were Ghana, Mali, and Songhai. The gold and salt played a role in the rise of trade in the region.

Villages along the east coast began with fishing and farming which later develop into trade cities with bustling seaports. The cities on the east coast were flourishing because of trade through the Indian Ocean with India, Arabia, Persia, and Rome.

it increased 6 percent and reached that in 1980

answer: this problem has only trivial solutions, with all points on the same line. x=5 or x=7/5.

step-by-step explanation:

there are three triangles, and three unknowns: x, y=length of middle segment, and z=cos(angles marked with red arc).

we need

and law of cosines,

the three equations are

see attached image for solution.