Shawn earns $12.75 per hour. How many hours does she need to work to earn $102 or more. Write and solve an inequality.

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

I’m confused on how to work the pie charts

Which is the best estimate of the product of 0.9 x 0.88? 0 0.25 0.5 1