Matt gives half of his books to the local library and kept the other half. his best friend gives him 3 more books. he nos has has 57 books. how many did he have to start

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?

Which statements regarding efg are true? check all that apply.

What numbers are included in the set of integers? what numbers are not included?