Vinyl wallpaper is needed to cover 4 walls of a room. each wall measures 12 feet by 8 feet and each bolt of wallpaper covers 72 square feet. deduct 52 square feet for windows and the door. if the wallpaper costs $13.90 per bolt, how much will the paper cost? how much will the paper cost?

He amount of carbon-14 present in animal bones t years after the animal's death is given by p(t)equals=upper p 0 e superscript negative 0.00012097 tp0e−0.00012097t. how old is an ivory tusk that has lost 26% of its carbon-14?

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

Find the root(s) of f (x) = (x- 6)2(x + 2)2.