Over the summer, Janice spent 120 hours reading. She spent 15% of that time reading science fiction and the
rest of the time reading non-fiction.

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

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

Select the two pairs of figures that are similar.