Which robber baron became one of the wealthiest people in the world by creating a trust that controlled most of the oil refineries in the united states? a. john d. rockefeller b. cornelius vanderbilt c. andrew carnegie d. john jacob astor

Which of these marketing methods henry ford sell the model t to many people who had never before owned a car? a) offering free maintenance on cars for a full year b) airing television commercials with memorable slogans c) advertising with the new communication outlets such as radio d) offering many different colors and models for buyers to choose from

Which is the correct order for events that eventually led to the collapse of the chinese imperial government

Iwill arward ! , i if po≅ pr, uo≅ ur, prove: ∠o ≅ ∠r. fill in the blanks: draw segment ≅ uo ≅ po≅ △oup ≅ △