Which business practice did Rockefeller repeatedly use that helped him succeed in building his oil monopoly? In all his businesses, Rockefeller made sure that he controlled all aspects of production.
With every purchase of a refinery, Rockefeller would add new products to his business.
In all his businesses, Rockefeller made a profit and used it to expand or buy other businesses.
With every business Rockefeller bought, he would learn about it, sell it at a profit, and buy another business.

Which business practice did Rockefeller repeatedly use that helped him succeed in building his oil monopoly? In all his businesses, Rockefeller made a profit and used it to expand or buy other businesses.

Explanation:

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In all his businesses, Rockefeller made a profit and used it to expand or buy other businesses.

Explanation:

PLEASE MARK BRAINLIEST

the nationalists wanted a strong central government so the new country wouldn't fall apart.

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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.