Matrices & Systems · Medium problem

Let $A = \begin{pmatrix}4 & 0 & -1 \\ 2 & 3 & 1\end{pmatrix}$ and $B = \begin{pmatrix}3 & 3 \\ 0 & 1 \\ 4 & 3\end{pmatrix}$. Find the entry in row $2$, column $2$ of $AB$.