Runners race around a rectangular park during the city marathon. the length of the park is 6 miles. the width of the park is 7 miles. which is the correct unit of measurement to use when figuring out how many miles someone would run during the marathon? a. miles b. miles 2 c. miles 3

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