## Geometry: Common Core (15th Edition)

$\underset{x2}{\underset\Rightarrow{5}}, \underset{x2}{\underset\Rightarrow{10}},\underset{x2}{\underset\Rightarrow{20}}, \underset{x2}{\underset\Rightarrow{40}},\underset{x2}{\underset\Rightarrow{80}}, 160$, . . . We multiply by 2 to get the next number in the sequence.