## Geometry: Common Core (15th Edition)

$\underset{+6}{\underset\Rightarrow{7}}, \underset{+6}{\underset\Rightarrow{13}}, \underset{+6}{\underset\Rightarrow{19}}, \underset{+6}{\underset\Rightarrow{25}}, \underset{+6}{\underset\Rightarrow{31}}, \underset{+6}{\underset\Rightarrow{37}},$ . . . We add 6 to the previous number to get the next number.