iii)
Since each taco is sold for $7.50, then the total amount of money earned by selling y tacos, is 7.50y. Nevertheless, $225 must be subtracted to find the salary, because the rental space is $225 weekly. Then, the salary for selling y tacos at Mall 2 is:
![W_2=7.50y-225](https://img.qammunity.org/2023/formulas/mathematics/college/5vg6gjdcs36dz30w4qnobsnk4iwy48n91v.png)