AP HUMAN GEOGRAPHY solve the question below

The radical equation 2+√2x-3 = √x+7 has a solution set [x= a0} and an extraneous root x = a1.

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?

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.