Find the slope of the line passing through each of the following pairs of points and draw the graph of the line. (5, 2), (3, 3)

Which one ? is the answer and how to find this answer

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

1) you deposit $2,500 in an account that earns 4% simple interest. how much do you earn in eight years?