please help me with these two questions

ex 3

ex 4

Use the combined wage bracket tables, Exhibit 9.3 and Exhibit 94, to solve. How much combined tax (in \$) should be withheld from the paycheck of a single employee earning $3,225 per month and claiming zero withholding allowances? [/1 Points] BRECMBC9 9.11.018. Use the combined wage hracket tables, Exhibit 9.3 and Exhibit 9.4, to solve: MARRIED Persons-WEEKLY Payroll Period (for Wages Paid through December 20XX) SINGLE Persons-MONTHLY Payroll Period (For Wages Paid through December 20XX)