Here’s your answer the A/= it means the answer is okay.
The sum of n terms of a geometric series is given by

Substituting the given numbers, you have

There are 6 terms in the series.
The answer is outliers because when you have a larger or smaller set than your sequence suggests the mean will move toward the outlier
Given that the total area of the four small squares is 256 ft2, the first thing we are going to do is to divide 256 by 4 and we get 64. So the area of each small square is 64. Now, to find the side length of each small square, we just have to square 64, and the answer is 8. Therefore, the side length of each small square is 8feet. Hope this helps.