Compute payroll An employee earns $40 per hour and 1.5 times that rate for all hours in excess of 40 hours per week. If the employee worked 55 hours during the week. Assume that the social security tax rate is 6.0%, the Medicare tax rate is 1.5%, and the employee's federal incom tax withheld is $575. a. Determine the gross pay for the week. $ b. Determine the employee's net pay for the week. When required round interim computations to two decimal places. Round your final answer to two decimal places. $