Final answer:
The claim that combined Federal and Provincial tax rates vary greatly from province to province is true, with states having autonomy in their tax structures, which leads to significant differences in tax rates and revenue sources.
Step-by-step explanation:
The statement that the combined Federal and Provincial tax rates vary a lot from province to province is True. Tax structures differ widely across the United States, with some states opting not to collect individual income taxes, such as Alaska, Florida, Nevada, South Dakota, Texas, Washington, and Wyoming. Instead, these states may rely on other forms of revenue, like higher property taxes or tourism-related taxes. Furthermore, the percentage of taxes collected by the federal government usually remains between 17% to 20% of GDP, indicating that the belief in substantial increases in federal taxes is misleading. States have autonomy in determining their tax systems, leading to significant variances in how they generate revenue and fund public services.