How did John d rockefeller succeed in the oil business

In 1870, he established Standard Oil, which by the early 1880s controlled some 90 percent of U.S. refineries and pipelines. Critics accused Rockefeller of engaging in unethical practices, such as predatory pricing and colluding with railroads to eliminate his competitors in order to gain a monopoly in the industry.

Explanation:

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this defines the ability for a flex item to grow if necessary. it accepts a unitless value that serves as a proportion. it dictates what amount of the available space inside the flex container the item should take up.

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