The perimeter of a regular octagon is 48 cm. If a larger, similar octagon is drawn with a side length ratio of 3:2 to the original octagon, what is the perimeter of the larger octagon? Select one:
A. 48
B. 52
C. 56
D. 72

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

If two lines form congruent alternate interior angles with a transversal, then the lines

The equation for two lines in the coordinate plane are 2dx+y=4 and -6x+y=3, where d represents an unknown value. what value(s) of d would make these lines parallel?