How is 3D figures related to other subjects?
Other than math or geometry

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?

Ineed to know the answer to this algebra question.

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.