ILL MARK BRAINLIEST IF YOU HELP MEEE!

Me answer number 3plz explain how you do it

Which expressions are equivalent to -6 + 3m

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?