5 years ago a company pays its employees a base salary of $1000 every other week. plus $30 for each sale. How many sales did the employee have if the paycheck is $1540

If 1540 is the employees salary for a week when he gets paid the $1000 then he made $540 total from sales in that time so divide 540 by 3 and you get 18

So he made 18 sales