Examlex
Summarize some of the evidence suggesting that Mars once had flowing water.
Purchases
The act of buying goods or services, involving the transfer of money or other forms of payment from buyer to seller.
Marginal Tax Rates
The amount of tax paid on an additional dollar of income, which can vary by income level and type of taxpayer.
Federal Personal Income Tax
A tax levied by the federal government on the annual income of individuals, with rates varying based on income levels.
Average Tax Rates
The ratio of total taxes paid to total income, expressing the fraction of income that is paid in taxes.
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