13. “Midway" is the name of 252 towns in the United States. “Pleasant Hill" occurs as many times. How many towns named “Pleasant Hil” are there
in the United States?

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

1. are the corresponding angles congruent 2. find the ratios of the corresponding sides 3. is triangle jkl congruent to triangle rst? if so what is the scale factor

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