7y + 8y can be simplified to 15y

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?

The reflexive property of congruence lets you say that ∠pqr ≅

What is the value of f(x) = 2.2 for f(-2)?