Describe how to use a tens fact to find the difference for 15-8 2nd grade

At school there are 526 students and 263 are girls about how likely is it that a randomly chosen student will be a boy

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?

In angle pqr find the measure of