The answer to this question is the term politics. Politics is the activities, actions, and policies of using one's power to make a decision for the whole group or for all members. Politics is also about making laws and how to enforce it to the people and showing the political views to people.
This change in price means that there is a shortage of lettuce and the price of tacos will increase. That if tacos are made with lettuce and everything else remains constant (ceteris paribus).
The Congress accepted Smithson's bequeathed and pledged to the United States for a charitable trust. After many years of debates, an Act of Congress that was signed by President Polk, stating that Smithson's money will be used to establish the Smithsonian Institution. Since its founding until the recent, Smithsonian Institution became one of the world's largest museum.
It required all territories to abolish slavery before becoming states.
And it made the mississippi river the divding line between slave states and free states. it also prohibited slavery in most of the former louisiana territory except for missouri.
