WILL GIVE BRAINLIEST

The number of customers at a new store during the first 5 days it was open are listed below.
1,345 1,439 1,533 1,627 1,721

The number of customers at the store each day follows a pattern. Which expression can be used to determine the number of
customers at the store on the nth day?

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