If each square represents one unit, that means the numbers from left to right are respresented by the total number of squares.
Therefore, the first one represents
[tex]\begin{gathered} 9\times12\text{ squares} \\ 108\text{ squares (108 units).} \\ \text{Therefore, the numbers in the geometric sequence are;} \\ 108,36,12,4 \\ \text{The common ratio is derived as the current term divided by the previous term} \\ \text{Therefore;} \\ r=\frac{36}{108}=\frac{12}{36}=\frac{4}{12} \\ r=\frac{1}{3} \end{gathered}[/tex]
The common ratio (which is r) equals 1/3
