What is the purpose of this rhetorical question as it used by douglass

Which of the following flow charts accurately illustrates the history of constitutional amendments in the united states?

In an industry in which there are several providers of a type of good, why can one business not charge much higher prices for their goods?

Which stanza structure does emily dickinson use in this excerpt from "hope is the thing with feathers"? hope is the thing with feathers that perches in the soul, and sings the tune without the words, and never stops at all, and sweetest in the gale is heard, and sore must be the storm that could abash the little bird that kept so many warm.