Plz really really really fast 2 mnis lefts

Me. i need an answer asap. , you! select the correct answer from each drop-down menu.simplify the given polynomial and use it to complete the statement.the polynomial simplifies to an expression that is a blank with a blank degree of blank .

Write two subtraction equations that are equivalent to 5 + 12 = 17.

Which of these is and example of a literal equation? a) 6+30=6^2 b)3x-4y c)12=9+3x d)ax-by=k