Determine the amount of the Earned Income Credit in each of the following cases. Assume that the person or persons are eligible to take the credit. Use Table 9-3. Required: Calculate the credit using the formulas. (For all requirements, do not round intermediate calculations. Round your final answers to the nearest whole dollar amount.) Earned Income Credit a A single person with earned income of $5,210 and no qualifying children. b. A single person with earned income of $22,700 and two qualifying children. C Amamed couple filing jointly with eamed income of $34,410 and one qualifying child