Fairly easy question about convergence of this series

Can you please tell me HOW I prove that the following geometric series is either CONDITIONALLY or ABSOLUTELY convergent?
sum of (-2/3)^n from n=1 to infinity

Using the ratio test,
r = lim(n→∞) |(-2/3)^(n+1) / (-2/3)^n| = 2/3 < 1.

Hence, the series converges absolutely.

I hope this helps!