Which line from the poem "madam and the rent man" is the best example of slang? you ain't done a thing back window's cracked it's not up to me i said, neither am i

The first line of the poem is the one that presents the best example of slang.

Explanation:

The phrase "You ain't done a thing" is not written in a formal and polished format, presenting a colloquial form of writing and for that reason is a phrase that represents a slang well.

To present a formal writing format and not represent a slang this sentence should have been written as follows: "You did nothing".

i am not sure if this is the correct story but i think the answerr is when twain's confidence when he asked twin a question

explanation: