Valentina is single and claims no dependents. Assume that Valentina has only one job or that step 2 of Form W-4 is not checked. Use the Wage Bracket Method Tables for Manual Payroll Systems with Forms W-4 from 2020 or Later available online in Publication 15 , Publication 15-T, "Federal Income Tax Withholding Methods." Use the appropriate wage bracket tables for a manual payroll systems. Required: a. If Valentina is paid weekly and her annual wages are $82,680, what is the amount of withholding per paycheck? b. If Valentina is paid monthly with annual wages of $68,640, what is the amount of withholding per paycheck? c. If Valentina is paid biweekly with annual wages of $63,960, what is the amount of withholding per paycheck? d. If Valentina is paid semimonthly with annual wages of $77,160, what is the amount of withholding per paycheck