Answer
Convergent
Work Step by Step
$\lim\limits_{j \to \infty}\frac{\sqrt j}{j+5}=\lim\limits_{j \to \infty} \frac{\sqrt j}{j}$
$=\lim\limits_{j \to \infty} \frac{\sqrt 1}{\sqrt j}$
$=0$
The series is convergent the Alternating Series Test.