It's Thursday. Brian and Danny are selling things to raise money for the school basketball team. A girl comes up to Brian's table.
Girl: How much are the cookies?
Brian: They're cheap! You can buy four for only one dollar.
Girl: Great. I'll take four, please.
Brian: Sure! One dollar, please.
(The girl takes a one-dollar coin from her pocket and pays for her cookies.)
Girl: Do you have any other things for sale?
Brian: Sorry, I only have cookies. But I guess my friend Danny is selling something different.
(The girl goes over to Danny's table. She sees a piece of wood with a red flag.)
Girl: What's that?
Danny: It's a Danny Desk-Cycle! Do you want to buy one?
Girl: What is it for?
Danny: It's a desk. You tie it onto your bike. You can do your homework while you ride your bike.
Girl: I don't think it would be safe to do my homework on a bicycle.
Danny: Try it for one week. If you don't like it, I will give you your money back.
Girl: How much does it cost?
Danny: It's only five dollars. That's a very low price for such a great product!
Girl: No, that's too expensive. I'm afraid I can't afford it. I only have a few cents. I gave most of my money to Brian for some cookies.
Danny: I'm hungry. May I have some of your cookies? We can trade!