Answer:
$2,610
Explanation:
total money earned: $19,000
she was taxes 9% on the first $10,000 which is equal to:

$900 in taxes for the first $10,000
then the rest (19,000 - 10,000 = 9,000) was earned above the first 10,000, which means that is taxed 19%. Thus, 19% out of 9,000 is equal to:

$1,710 in taxes for the $9,000 earned after the first $10,000
She owes in taxes a total of:

$2,610