Zero Property of Multiplication — Definition & Examples

Sally and Sam are shopping when they find out that their favorite clothing store is having a promotion! For every $\$25$ a customer spends, he or she will receive $\$5$ cash back to spend at the store.

Sally picks out a shirt for $\$10$ and a bag for $\$12.50$, while Sam finds $2$ pairs of jeans that he loves at $\$35$ each.