What was the impact of double-stacked railroad cars on the state economy?

a. it let to takeover of the state railroad monopoly

b. it reduced the cost of the shipping goods to and from the east coast

c. it brought an end to most seaborne cargo transport

d. it loggers harvest more timber

What is cuba’s relationship with the us in

What happened 10 million years ago? if u answer, u get 50 ! plz answer ; -;

"but let us admit texas, and we shall place the balance of power in the hands of the texans themselves. they, with the southern states, will control the policy and the destiny of this nation; our tariff will then be held at the will of the texan advocates of free trade. are our friends of the north prepared to deliver over this great national policy to the people of texas? " - rep. joshua giddings, ohio, may 21, 1844 this quote points to what major issue in the years leading up to the civil war?