The ancient Greeks required a straightedge and protractor to construct a perpendicular bisector for a given line segment

What is the measure of angle z in this figure? enter your answer in the box. z = ° two intersection lines. all four angles formed by the intersecting lines are labeled. clockwise, the angles are labeled 43 degrees, x degrees, y degrees, and z degrees.

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

Aquantity with an initial value of 3900 decays exponentially at a rate of 35% every hour. what is the value of the quantity after 0.5 days, to the nearest hundredth?