Perform the Following Matrix Operations If Possible $\left(\begin{array}{lll}1 & -7 & 3\end{array}\right)-\left(\begin{array}{ll}4 & -5\end{array}\right)$

Perform the following matrix operations if possible.
(a) $\left(\begin{array}{lll}1 & -7 & 3\end{array}\right)-\left(\begin{array}{ll}4 & -5\end{array}\right)$
(b) $\left[\begin{array}{rrr}1 & 6 & 7 \\ 0 & -3 & 5\end{array}\right]-2\left[\begin{array}{rrr}6 & -5 & 2 \\ -1 & 0 & 3\end{array}\right]$
(c) $\left(\begin{array}{lll}4 & 3 & -2\end{array}\right)\left[\begin{array}{rr}1 & -2 \\ -1 & 5 \\ 6 & 0\end{array}\right]$