A store orders 22 boxes of light bulbs. Each box has 148 bulbs. Which is the best estimate of the total number of bulbs the store orders?

A.
20

×

100
B.
20

×

150
C.
25

×

150
D.
25

×

200

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