marco Francisco Vasquezand his wife Fatima and their two children immigrated from Honduras two summers agoand this past February Markel found a position as a Market research senior analystfor the university of Illinois he earned $$95,400$ in salary over the year and must pay federal income tax for the first time

a$)$

If Marco contributed $$5,000$ to his employer$-$qualified retirement plan, what impact does that have on his income taxes?

$($b$)$

If he bought and sold some stocks during the year and profited $$4,000,$ what impact does it have on his income taxes?

$($c$)$

How much is their standard deduction amount?

$($d$)$

What is their taxable income?

$($e$)$

How much is their tax liability? $($Hint: Use Table $4-2)$

$($f$)$

What is their marginal tax rate?

$($g$)$

What is their average tax rate?