A: We need to save money.
B: Why do we need to save money?
A: Because we need to buy a house.
B: But a house is so expensive.
A: That's why we need to save money.
B: How much do we need to save?
A: We need to save enough for a down payment.
B: How much is that?
A: That's about $30,000.
B: Thirty thousand dollars! That will take forever.
A: Not if we save every penny.
B: Okay. Here's seven pennies.