"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.)
I don't really know how to explain, but I will give you the straight up answer
5 HARDCOVER BOOKS (would total up to $20)
3 paperback books (would total up to $6)
Direction Angle of the Vector : y = -5i + 2j
Answer:
-6
Step-by-step explanation: