Hello, In a right angle triangle PQR, X is on PQ, Z is on QR and Y is on PR such that PX=PY and RZ=RY.
Determine the measure of angle XYZ.

Thank you !

You paint a 1/2 of a wall in 1/4 hour. how long will it take you to paint one wall

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?

Due to financial difficulties the owner of 4 skateboard stores is going to close 2 of his stores. based on the money earned at each store, which two stores should remain open?