Evaluate each series below.

${\displaystyle \underset{i=0}{\overset{}{}}}(\frac{5}{6}{)}^i=$

${\displaystyle \underset{i=0}{\overset{}{}}}(-\frac{5}{6}{)}^i=$

${\displaystyle \underset{i=0}{\overset{}{}}}(\frac{6}{5}{)}^i=$

${\displaystyle \underset{i=0}{\overset{}{}}}\frac{1}{6^i}=$

${\displaystyle \underset{i=1}{\overset{}{}}}\frac{1}{6^i}=$

${\displaystyle \underset{i=1}{\overset{}{}}}\frac{1}{6}=$