Which of the following is an example of a function?

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?

Identify the number 127 as a rational or irrational. explain

Evaluate 8j -k+148j−k+14 when j=0.25j=0.25 and k=1k=1.