What is the questions you’re asking?
The exchange will only happen if both indivuduals want it, that is, of both of them think it will be profitable to them. In other words, it will only happen if both indivuduals expect to gain from it ("gain' is the best word for the blank").
(Sometimes people are forced to unprofitable exchanges, but this doesn't happen in a free economy)
Answer:
The United States contains and is surrounded by many important bodies of water. Gulf of Alaska in the north, the Gulf of California in the west, and the Gulf of Mexico in the south
Answer:
That opinion was expressed by Thaddeus Stevens, a radical Republican.
Explanation:
Stevens wrote this opinion in a letter he wrote to Andrew Johnson. In that letter he described how the union should act when the confederate states were reintroduced into national politics. For Stevens, the reconstruction was being done incorrectly, taking the blame off the Confederates and not establishing severe punishments for all the damage they did during the war. In addition, Stevens did not think it right that the president should lead the reconstruction guidelines, but that the legislative branch should do so, because that branch would have more legal and just bases to establish everything that should be done.