Answer
$\begin{pmatrix}
13 & -1\\
-6& -11\\
-3& 20\\
6&-5
\end{pmatrix}$
Work Step by Step
$A^T-5B=$
$\begin{pmatrix}
-2& -1\\
4& -1\\
2& 5\\
6&0
\end{pmatrix}-\begin{pmatrix}
15 & 0\\
10& 10\\
5& -15\\
0&5
\end{pmatrix}=\begin{pmatrix}
13 & -1\\
-6& -11\\
-3& 20\\
6&-5
\end{pmatrix}$