What is the answer? markers are sold in boxes, packs, or as single markers. each box has 10 packs. each pack has 10 markers

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

What are the domain and range of f(x)= -log5(x+2)

If bill bought a home for $210,000 and he sold it a year later for $120,000 his percentage of loss is