Answer:
Option c ($9,000) is the correct answer.
Explanation:
The given values are:
Annual increase in sales,
= $100,000
Now,
The collection expenses will be:
= [tex]100,000\times 15 \ percent[/tex]
= [tex]15,000[/tex]
Selling as well as manufacturing expenses will be:
= [tex]100,000\times 70 \ percent[/tex]
= [tex]70,000[/tex]
Tax expense will be:
= [tex]15,000\times 40 \ percent[/tex]
= [tex]6,000[/tex]
After-tax profits increase will be:
= [tex]15,000-6,000[/tex]
= [tex]9,000[/tex] ($)