$2$ attempts remaining.

Suppose $a_n=\frac{3n}{4n+7}$

$($a$)$ Compute $\underset{n}{lim}{a}_n.$

$($b$)$ What does the Divergence Test tell us about the series ${\displaystyle \underset{n=1}{\overset{}{}}}\frac{3n}{4n+7}?$

Note: for this question, Edfinity won't tell you which parts you got correct. To receive credit for this problem, BOTH parts must be correct.