At a basketball game, a team made 53 successful shots. They were a combination of 1- and 2-point shots. The team scored 87 points in all. Write and solve a system of equations to find the number of each type of shot.

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