I need help with this, extra points. It’s from the book PRIDE AND PREJUDICE by Jane Austen

What does the author mean by including the word “invalid”?
Very confused on that..
and what does the author mean by “to mend”?

The denouement comes at the beginning of a story a. true b. false

What is the main difference between hearing and listening? a) hearing is easy; listening is hard. b) hearing involves the outer ear; listening involves the inner ear. c) hearing is the physical activity; listening involves processing the information. d) none of the above

Which statement best describes a difference between the poem "ellis island" and the essay ": a native american view"? the poem discusses difficulties encountered by europeans, but the essay does not. the essay discusses the identity of the author, but the poem does not. the poem discusses immigration in the nineteenth and twentieth centuries, but the essay does not. the essay discusses hopes for america, but the poem does not.