In a certain year, the maximum taxable income for Social Security was x dollars and the tax rate was 6.2%.
a. What is the maximum Social Security tax anyone could have paid in that year?
b. Paul had two jobs that year. One employer paid him y dollars and the other paid him p dollars. His total income was greater than x. Each employer took out 6.2% for Social Security. Express the amount that Paul overpaid for Social Security taxes in that year algebraically.