Hunter-gatherers
a.
both hunted and cultivated crops.
b.
moved constantly in search of food.
c.
irrigated their gardens.
d.
built large cities.
select the best answer from the choices provided
answer is
b on edg.

Hello! The answer to your question would be as followed:

Hunter-gatherers

b. moved constantly in search of food

an economic reason that the south needed a reconstruction plan is that plantations, factories, and other businesses were destroyed during the war.

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