Problem $3-7($LO$3\mathrm{.}3)$

Using the tax table, determine the amount of federal taxes for the following situations:

a$.$ A head of household with taxable income of $$73,000.$

b$.$ A single person with taxable income of $$42,600.$

c$.$ Married taxpayers filing jointly with taxable income of $$83,100.$

Note: For all the requirements, round your intermediate calculations and final answer to the nearest whole dollar.