The colonists in the New World used enslaved African people as labor because A) Native Americans were better able to escape and hide than enslaved Africans.

B) African people had greater resistance to European diseases than Native Americans

C) the colonists' plantations grew labor-intensive crops.

D) All of the choices are correct.

D

Explanation:

A. Native Americans were familiar with the terrirtory.

B. African people had been interacting with Europeans through trade for centuries and therefore had immunity to European diseases.

C. True. Cash crops like cotton, tobacco, rice and indigo were very labor intensive.

the second significant cause of the great migration was the desire of black southerners to escape segregation, known euphemistically as jim crow. rural african american southerners believed that segregation - and racism and prejudice against blacks - was significantly less intense in the north.

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