Penny is paid a gross wage of $2,648 on a monthly basis. She is single and is entitled to 2 withholding allowances. How much income tax, social security, and Medicare will be withheld based on the combined wage bracket tables in Exhibits 9-3 and 9-4 from your text? a. $463.49 b. $426.55 c. $371.49 d. $417.49