Algebra nation! i cant tell the sum or product of rational and irrational numbers added or multiplied together! someone explain : )

How do you use the additive inverse to evaluate an expression that uses subtraction in a full sentence

Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?

How does reflecting or rotating a figure change the interior angles of the figure?