Answer:
total salary = (40 x $18) + (6 x $18 x 1.5) = $882
Dr Salaries expense 882
Cr Federal income tax withholding payable 120
Cr OASDI tax withholding payable 61.74
Cr Medicare tax withholding payable 13.23
Cr Salaries payable 687.03
Dr Payroll tax expenses 119.07
Cr OASDI tax payable 61.74
Cr Medicare tax payable 13.23
Cr SUTA tax payable 35.28
Cr FUTA tax payable 8.82