What is the greatest common factor of 18, 36, and 90? answer=Job well done! 18 is the greatest common factor of 18, 36, and 90. Each of these numbers can be divided evenly by 18.

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

The area of square garden is 300m squared. how long is the diagonal?

Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters