Explanation:
Given:
The basic salary is
[tex]\text{ \$}400[/tex]The commission given is
[tex]\begin{gathered} commision=6\%ofsales \\ where, \\ sales=s \end{gathered}[/tex]The commission therefore will be represented below as
[tex]\begin{gathered} commission=\frac{6}{100}s \\ commision=0.06s \end{gathered}[/tex]Using the formula below, we will have the expression be
[tex]\begin{gathered} totalpay=basicsalary+commision \\ totalpay=400+0.06s \end{gathered}[/tex]Hence,
The expression will be
[tex]t=0.06s+400[/tex]