A cubic function of the form y=ax3+bx2+cx+d yields the following table: , what are the coefficients

Which expression is equivalent to 2x^2+2x-4/2x^2-4x+2

Can any one me with the answers to these questions asap?

Twenty points. 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