Answer:
PART A
The amount of OASDI taxes to withhold from Dee's pay is ($128,400 - $127,100) = 1300 x 6.2%
The amount of OASDI taxes to withhold from Dee's pay is = $80.60
Part B
The 2018 wage base is $128,400 maximum amount of OASDI tax
The amount of HI taxes to withhold from Dee's pay is = $ 2345 x .0145%
The amount of HI taxes to withhold from Dee's pay is = $34