Matrices & Systems · Easy problem

Let $\mathbf x = \begin{pmatrix}1\\2\end{pmatrix}$, $A = \begin{pmatrix}3 & 1\\0 & 2\end{pmatrix}$ and $\mathbf y = \begin{pmatrix}2\\-1\end{pmatrix}$. The product $\mathbf x^{T}A\mathbf y$ is a $1\times 1$ matrix. Find its single entry.