What does the metaphor cashing a check mean

A metaphor is a figure of speech that directly refers to one thing while mentioning another one. Metaphors are meant to establish clarity between ideas, or a link that connects them.

In this case, Martin Luther King Jr. presents the metaphor of "cashing a check" in order to refer to the Civil Rights Movement. His argument is that the United States had given black people a "check," which refers to their rights. However, these had not been realized. Therefore, in "cashing" this check, black people were asking to receive what the country had promised them before: equal rights.

the development of trade during the middle age increased to the change given in the agriculture, which gave money, industry and markets a bigger importance in economy. the agriculture production was more than the consumption, which meant the creation of wider markets out of the areas. besides, with the end of multiple wars, the population increased and new trade routes were created.

the central idea is basically saying that juveniles that have committed a crime will not have the same consequences as the   adults that have. they will have a softer punishment than what the adults have that is harsh in some ways.