For each of the following problems determine whether there is a real-life solution or not. If not, explain why not, if so, find one.

**Problem 1**: You have 1 dollar. You want to spend it all
on candy. A bubble gum costs 15 cents, and a sucker costs 21 cents.
How many of each should you buy to exactly use up your dollar?

**Problem 2**: You have $1.08. You want to spend it all
on candy. A bubble gum costs 15 cents, and a sucker costs 21 cents.
How many of each should you buy to exactly use up your $1.08?

**Problem 3**: You have 33 cents. You want to spend it all
on candy. A bubble gum costs 15 cents, and a sucker costs 21 cents.
How many of each should you buy to exactly use up your dollar?