How did vertical integration the carnegie steel business?

it reduced the costs along the supply chain, from mining to transportation to manufacturing.
it gave the company a monopoly on the industry because it eventually owned its competitors.
it assigned one worker to a job, which reduce wasted time and speed manufacturing.
it provided quick and easy access to transportation methods, such as canals, rivers, and railways.

"Vertical integration helped the Carnegie Steel business because it reduced costs along the supply chain from mining and transportation to manufacturing. Carnegie bought out coal fields, iron mines and railroad lines to ensure that he could control the raw materials and transportation lines."

- Another Brainlier (not my answer, but I do think this will help you. Credit to the sources.)

answer: 25 is the correct answer

step-by-step explanation:

the least common denominatore of 7 and 2 is 9

step-by-step explanation:

7+2=9