Martin is married (spouse does not work), two dependents who are under the age of 17. What is his federal income tax withholding under the following conditions? Assume that Martin has only one job or that step 2 of Form W-4 is not checked. Also, his employer uses the percentage method table for a manual payroll. Use the Percentage method tables for a manual payroll system. Required: a. Martin is paid semimonthly, and his gross pay is $3,622.58 per paycheck. b. Martin is paid monthly, and his gross pay is $6,712.97 per paycheck. c. Martin is paid weekly, and his gross pay is $4,605.25 per paycheck. (For all requirements, round your intermediate computations and final answers to 2 decimal places.)