Problem: Olivia has $23. She bought five bagels for $3 each. How much money does she have left?
Solution: 5 bagels for $3 each should cost 5 * 3 = 15 dollars. Olivia had $23 in the beginning, so now she has 23 - 15 = 8 dollars left.
Equation: 5 * 3 = 15. 23 - 15 = 8.
Answer: 8