How did the environment affect the development of early African societHow did the environment affect the development of early African societies? Choose four correct answers. People tended to settle along the banks of major rivers. People farmed crops, herded animals, and hunted and fished. People were only able to live for a short time in one place. Natural disasters occurred often, making it difficult to maintain farmland. Housing was made from natural resources. Tools and weapons were made from animal bones, stones, and metalsies? Choose four correct answers.

A: People tended to settle along the banks of major rivers.

B: People farmed crops, herded animals, and hunted and fished.

D: Housing was made from natural resources.

E: Tools and weapons were made from animal bones, stones, and metals

Explanation:

i am pretty sure the awsers is d.

8 - (2a + 7) = a + 40     distribute/multiply - into (2a + 7)

8 - 2a - 7 = a + 40

1 - 2a = a + 40       add 2a on both sides

1 = 3a + 40         subtract 40 on both sides

-39 = 3a       divide 3 on both sides

-13 = a

[proof]

8 - (2a + 7) = a + 40

8 - (2(-13) + 7) = -13 + 40

8 - (-26 + 7) = 27

8 - (-19) = 27

8 + 19 = 27

27 = 27