Final answer:
States impose either a state income tax or a general sales tax, but not both types of taxes. While most states have sales taxes, not all states have an income tax.
Step-by-step explanation:
States impose either a state income tax or a general sales tax, but not both types of taxes. While most states have sales taxes, not all states have an income tax. For example, Alaska, Florida, Nevada, South Dakota, Texas, Washington, and Wyoming do not have individual income taxes.
These states rely on other sources of revenue, such as higher property taxes or taxes related to tourism. It's important to note that this applies to state taxes, and not necessarily to federal or local taxes.