Find a Likely Function Rule for Each of the Following

Find a likely function rule for each of the following. Show your work.
A)
$\begin{array} { | l | l | } \hline x & f ( x ) \\\hline 2 & 15 \\\hline 3 & 19 \\\hline 4 & 23 \\\hline 5 & 27 \\\hline \ldots & \ldots \\\hline\end{array}$

f(x)=

B)
$\begin{array} { | l | l | } \hline x & y \\\hline 1 & 14 \\\hline 2 & 11 \\\hline 3 & 8 \\\hline 4 & 5 \\\hline \ldots & \ldots \\\hline\end{array}$

y=

C)
$\begin{array} { | l | l | } \hline x & g ( x ) \\\hline 4 & 29 \\\hline 3 & 21 \\\hline 1 & 5 \\\hline 2 & 13 \\\hline \ldots & \ldots \\\hline\end{array}$

g(x)=

D)
$\begin{array} { | l | l | } \hline x & y \\\hline 0 & 5 \\\hline 1 & 6 \\\hline 2 & 9 \\\hline 3 & 14 \\\hline 4 & 21 \\\hline \ldots & \ldots \\\hline\end{array}$

y=