Evaluate the following expressions.

$a.{\displaystyle \underset{k=1}{\overset{11}{}}}k$

$b.{\displaystyle \underset{k=1}{\overset{8}{}}}(4k+2)$

$c.{\displaystyle \underset{k=1}{\overset{5}{}}}{k}^2$

$d.{\displaystyle \underset{n=1}{\overset{7}{}}}(3+n^2)$

$e.{\displaystyle \underset{m=1}{\overset{4}{}}}\frac{3m+3}{8}$

$f.{\displaystyle \underset{j=1}{\overset{5}{}}}(4j-5)$

$g.{\displaystyle \underset{k=1}{\overset{5}{}}}k(2k+3)$

$h.{\displaystyle \underset{n=0}{\overset{6}{}}}sin(\frac{n}{2})$