here are 50 teachers that work in a school. On Friday, 43 teachers were present. What PERCENT of the teachers showed up for work? *

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 base of a triangle exceeds the height by 7 centimeters. if the area is 400 square centimeters, find the length of the base and the height of the triangle.

Abcd is a square. what is the measure of angle bac