The answer is 12 I think, I do you mean 4x3?
Answer: Big business leaders such as Andrew Carnegie, John D. Rockefeller, and J.P. Morgan gained extreme wealth during the Gilded Age. They profited off steel, oil, and banking. The Gilded Age was also the time of the Second Industrial Revolution, where mass production, conveyor belts, and railroads helped shaped America.
The answers areeee
"one week later"
"the telegram caused the us to declare war"
Answer:
D
Explanation:
Establishing post offices