Scott and Laura are married and will file a joint tax return. Scott has a sole proprietorship $($not a "specified services" business$)$ that

generates qualified business income of $$300,000.$ The proprietorship pays $W-2$ wages of $$40,000$ and holds qualified property with an

unadjusted basis of $$10,000.$ Laura is employed by a local school district. Their taxable income before the QBI deduction is $$424,200($this

is also their modified taxable income$).$

a$.$ Determine Scott and Laura's QBI deduction, taxable income, and tax liability for $2023.$

QBI deduction

$

Taxable income

$

Tax liability

$

b$.$ After providing you with the original information in the problem, Scott finds out that he will be receiving a $$6,000$ bonus in December

$2023($increasing their taxable income before the QBI deduction by this amount$).$ Redetermine Scott and Laura's QBI deduction, taxable

income, and tax liability for $2023.$

QBI deduction

$

Taxable income

$

Tax liability

$

c$.$ What is the marginal tax rate on Scott's bonus? Enter the percent to one decimal place.