Carrie Rosenberg worked 45 hours during the first week of the calendar year and earns regular wages of $16/hour. Assuming that she is paid an overtime rate that is 1.5 times her regular wage rate, that she requests that 4% of her gross pay be contributed to a 401(k) plan, and that she contributes $30 per week to a flexible spending account, her Social Security tax for the week is $ .