Why or how does patrick henry use rhetorical questions?

Patrick Henry uses rhetorical questions but he is not expecting an answer. He tries to lead the audience to the same conclusion as the speaker and this called persuasion.

Thirty percent of his speech is composed of questions and Patrick Henry is pretty confident that his audience would answer the questions the same way as he would.

they were unable to pay their debts

the east coast has nothing to do with the dust bowl, the dust bowl killed a full year's worth of crops in seconds, and with the dust on the land, the land would be worthless.   furthermore the farmers couldn't  get  out of their houses due to the dust so when the bank came to collect money, farmers couldn't  pay it

35 is your answer because i looked it up