Answer: So the second model is 0.2667 feet longer than the first.
Step-by-step explanation: 8 inches * (1/12 feet per inch) * (1/2.5) = 0.1333 feet
So the length of the first model is 0.1333 feet.
The length of the second model is also at a scale of 1/2.5 feet, so its length can be found directly by multiplying the length of the actual building by the scale factor:
Length of second model = 1/2.5 * 1 foot = 0.4 feet
to make next step we can use difference between these numbers by their lengths: Length of second model - Length of first model = 0.4 feet - 0.1333 feet = 0.2667 feet