Answer
$M_{33}=5$
and
$A_{33}=5$
Work Step by Step
The minor of an element is defined $a_{ij}$of a determinant is defined as the determinant obtained by deleting its ith row and jth columns and the minor $M$ of an element $a_{ij}$ is abbreviated as $M_{ij}$.
Further, the cofactor of an element $a_{ij}$ is abbreviated as $A_{ij}$.
where $A_{ij}=(-1)^{i+j} M$
Here, $M_{33}=\begin{vmatrix}1&0\\-3&5\end{vmatrix}=(1)(5)-0=5$
and
$A_{33}=(-1)^{3+3} M_{11}=(-1)^6(5)=5$