Jennifer and Paul, who file a joint return, have taxable income of $93,575 and the following tax liability: $19,750 * 10% = ($80, 250 - $19,750) x 12% = ($93,575 $80,250) x 22% = Total tax liability $ 1,975.00 7,260.00 2,931.50 $ 12,166.50 Their marginal tax rate is: Multiple Choice 13%. O 12. 10% 229