Find the total amount given the original price and tax or tip rate. Round to the nearest hundredth if necessary. Original price: $156.67

Tax or tip rate: 6%

With finding limits of multi variable !

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.

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