Answer:
more than $22,000
Explanation:
The second salesperson's salary can be described by 500+0.05s, where s is the value of that salesperson's sales. We want to find s such that this is more than the first salesperson's salary.
... 500 +0.05s > 1600
... 0.05s > 1100 . . . . . . subtract 500
... s > 22,000 . . . . . . divide by 0.05
For sales more than $22,000, the second salesperson earns more than the first.
