How often do they send the statements?

A: Did you send out an invoice to the Sun Electronics Company?
B: Yes. It’s also time to send them a statement now.
A: What’s the total due on their account?
B: They owe $ 355, 000.
A: Let’s get all the invoices and statements out this afternoon, if we can.
B: I think we can. I’ve already started on them. How often do you send them?
A: We send them monthly.

A: That sounds like a good system.
B: Each product, indicated by a different color, is numbered in a separate series. For example, our lights of model A, represented by red, would be numbered 1-500. Our lights of model B, represented by yellow, would be numbered 501- 1001, and so on.
A: That must avoid a lot of mix-ups.
B: Yes, it does. And over here’s our computer system. It’s sophisticated, but quite easy to use.