Use the information in Table 18.2 on page 602 to calculate the total federal income tax paid,

Question:

Use the information in Table 18.2 on page 602 to calculate the total federal income tax paid, the marginal tax rate, and the average tax rate for people with the following incomes. (For simplicity, assume that these people have no exemptions or deductions from their incomes.)
a. $25,000
b. $125,000
c. $300,000