HELP

Is this a polynomial function? i need to know asap

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.

Which equation can be used to measure the density of water in a spherical water tank? let w represent the number of water particles within the region.