If the company takes away 15% it means you'll take home 85% of those $138.75.
Let's use a rule of three to calculate this percentage:
This way,
[tex]\begin{gathered} x=\frac{138.75\cdot85}{100} \\ \Rightarrow x=117.94 \end{gathered}[/tex]Therefore, you would take home $117.94 each week