Math please help if you can (I only need the answer to Z)

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 .

Need on this geometry question. explain how you did it.

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c