## Geometry: Common Core (15th Edition)

Alternate between multiplying by 3 to get the next term and adding 1 to get the next term. $\underset{\times3}{\underset\Rightarrow{2}}, \underset{+1}{\underset\Rightarrow{6}},\underset{\times3}{\underset\Rightarrow{7}}, \underset{+1}{\underset\Rightarrow{21}},\underset{\times3}{\underset\Rightarrow{22}}, \underset{+1}{\underset\Rightarrow{66}},\underset{\times3}{\underset\Rightarrow{67}}, \underset{+1}{\underset\Rightarrow{201}}, 202$, . . .