Supposed that a$,$ b$,$ and c are integer variables and x$,$ y$,$ and z are floating point variables. Furthermore, an integer constant $2$ has been assigned to the variable a and a floating$-$point constant $-5\mathrm{.}4$ has been assigned to the variable x$.$ For each of the following statements, what is the value of the variable on the left hand side of the assignment operator?