Answer: 54 feet or 648 inches.
Step-by-step explanation:
1. You know that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. Therefore, you can calculate the width of the full-sized house that it's modeled after, as following:
[tex]width=\frac{108in*1/2ft}{1in}\\width=54ft[/tex]
2. Then, the width in feet is: 54 feet.
3. And the width in inches is:
(Keeping on mind that 1 feet=12 inches)
[tex]\frac{54ft*12in}{1ft}=648in[/tex]
