If you assume the sequence is geometric, then the common ratio will be
[tex] \sqrt[3]{ \frac{3 \frac{5}{9}}{-12}} = \sqrt[3]{- \frac{8}{27}} = - \frac{2}{3} [/tex]
Then the boxes left-to-right are
.. 8p, -(5 1/3)p, ..., -(2 10/27)p
I don't know how you've been taught to describe the pattern, but it amounts to
.. A → (-2/3)×A
