It took everly 55 minutes to run a 10-kilometer race last weekend. if you know that 1 kilometer equals 0.621 mile, how many minutes did it take everly to run 1 mile during the race? round your answer to the nearest hundredth.

a; 3.41 min
b: 5.50 min
c: 6.21 min
d: 8.86 min

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