Answer: The salesperson sold $1240 worth of dishwashers.
Step by step solution:
From the information given, we know that the salesperson's commission is
30% = 30/100 = 0.3
Total Commissions = $372
The equation that fits the situation is:

Let x = total dollars of dishwashers sold
Solve for x,

The salesperson sold $1240 worth of dishwashers.