The temperature at the North Pole is 30 degrees F and is expected to drop 5 degrees F per hour for the next several hours. Write an equation that represents the relationship between temperature and time. Explain what the information your numbers and variables represent. Equation:

What do your numbers and variables mean?

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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