Question

3 the responsibility for implementing tax legislation, interpreting tax law, ensuring taxpayers compliance with the law, and collecting the income tax is given to the u.s. president. the commissioner of the treasury. congress as the primary agency for protecting taxpayers. the internal revenue service. 4 the federal income tax is designed to ensure that taxpayers with higher taxable incomes pay a larger percentage rate than do taxpayers with lower taxable incomes. higher taxable incomes pay equal percentage rates as taxpayers with lower taxable incomes. higher taxable incomes pay a smaller percentage rate than do taxpayers with lower taxable incomes. lower taxable incomes pay a larger percentage rate than do taxpayers with higher taxable incomes.

Explanation:

For question 3:

• The U.S. president has broader executive powers but not the specific tax - related responsibilities mentioned.
• The Commissioner of the Treasury has some treasury - related duties but not the core tax - implementation and collection as described.
• Congress is a legislative body, not the primary agency for day - to - day tax - payer compliance and collection.
• The Internal Revenue Service (IRS) is specifically tasked with implementing tax legislation, interpreting tax law, ensuring taxpayer compliance, and collecting income tax.

For question 4:

• The federal income tax is a progressive tax. A progressive tax is designed such that as taxable income increases, the percentage tax rate also increases. So taxpayers with higher taxable incomes pay a larger percentage rate than those with lower taxable incomes.

Answer:

1. the Internal Revenue Service.
2. higher taxable incomes pay a larger percentage rate than do taxpayers with lower taxable incomes.