Since Max is paid 2.5% of his total sales T, then his total earnings are (2.5/100) times T plus his weekly salary:
[tex]P=225+\frac{2.5}{100}T[/tex]The fraction 2.5/100 is equivalent to 1/40. Rewrite P using propper fractions:
[tex]P=225+\frac{1}{40}T[/tex]His total pay for a week with a total sales of $4,650, is:
[tex]\begin{gathered} P=225+\frac{1}{40}(4650) \\ =225+116.25 \\ =341.25 \end{gathered}[/tex]Therefore, Max is paid a total of $341.25 for a week in which his total sales are $4,650.