Lydia and Michelle each went for a haircut. They want to donate the length they cut off to make wigs. Together, they have 3 feet of hair to donate. How many inches of hair did each girl donate? explain your thinking and solution

Which of the following answers is 5/25 simplified? 1/5 5/5 2/5 1/25

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

Asource of laser light sends rays ab and ac toward two opposite walls of a hall. the light rays strike the walls at points b and c, as shown below: what is the distance between the walls?