Answer
$$\begin{pmatrix}28&-76\\ -20&10\end{pmatrix}$$
Work Step by Step
Finding the product of the matrices, we obtain:
$$\begin{pmatrix}11\cdot \:0+7\cdot \:4&11\left(-5\right)+7\left(-3\right)\\ 1\cdot \:0+\left(-5\right)\cdot \:4&1\cdot \left(-5\right)+\left(-5\right)\left(-3\right)\end{pmatrix} \\ \begin{pmatrix}28&-76\\ -20&10\end{pmatrix}$$