What is the next term of the geometric sequence?

5, 20, 80,5,20,80,5, comma, 20, comma, 80, comma

320

Step-by-step explanation:

5, 20, 80,5,20,80,5, comma, 20, comma, 80, comma is not a geometric sequence.

However, if you mean 5, 20, 80 it is a geometric sequence.

It is being multiplyed by 4 each time

so 80*4=320

The next number would be 320.