Respuesta :

jumpyunicornz
The common difference is 4. If you look at the numbers 1 and 5, there is a difference of 4. If you look at 5 and 9, there is also a difference of 4. If you look at 9 and 13, there is a difference of 4. Therefore, in this arithmetic sequence, the common difference is 4.
Electrolyte
In the sequence, the numbers are increasing by 4 each time.
So the common difference is 4.
Hope this helps!
:)