For this case we have:
Let:
- s: Profit from sales in a given week
- e: Seller's weekly profit
Where "c" represents the commission.
The commission on sales can be observed with the application of a rule of three:
s ---------> 100%
c ---------> 4%
Thus, e is given by:
Answer:
The equation that models the relationship between her sales in a given week, s, and her weekly earnings, e is:
Option d