Help Please Its a lot im sorry :(

Did justinian and theodora use their power wisely? to what extent did they abuse it?

How was rockefeller able to build his monopoly across the oil industry? he found newer and cheaper ways to refine oil, increasing his profits. he confined his business to ohio so he could buy all the refineries there. he bought up oil refineries, cut costs, and reinvested his profits in other refineries. he began to sell kerosene as well as oil, expanding his market.

What was the main argument of plessy in plessy v. ferguson