let a, b and c denotes the subset of a set, s and let c' denotes the complement of c in set s. if a ∩ c = b ∩ c ，and a ∩ c' = b ∩ c' proof a=b

Suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet.