a. Compute the total Medicare tax for the following taxpayers. If required, round your answers to the nearest dollar.
b. George and Shirley are married and file a joint return in 2016. During the year, George earns wages of $198,900, and Shirley earns wages of $298,350. Their total Medicare tax is $.
c. Simon has net investment income of $227,000 and MAGI of $181,600 and files as a single taxpayer. Simon's additional Medicare tax is $.