*15 points* will give brainliest Foster surveyed all the teachers in B lunch about the number of students in their first class of the day. Out of 20 teachers surveyed, 4 teachers had more than 25 students. Based on this data, what percent of dasses have more than 25 students? Write your answer as a decimal,​

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