The quotient of a nonzero numbers and its opposite is -1 is either always, sometimes, or never true

Which questions would most a reader identify the author's purpose for writing? check all that apply. what type of text is this? what type of reviews did the book receive? how many copies of the book have been sold? what is the central idea? how does this text make one feel?

Me i’m stuck on all these questions besides the two bottom ones

Iknow the answer but the calculator doesn't seem to give the right one