$460 at 6%for 5 years

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.

Explain why the factor 1.5 is broke. into two numbers in the model.

Solve the system of equations. y=3x-1 and y=-2x+9. show work