Answer:
a. $11,989
Explanation:
tax rate // for income above
0.1 // $ 0
0.12 // $ 13,600
0.22 // $ 51,800
0.24 // $ 82,500
Mary's income of $79,280 is on the third bracket as is lower than the minimum for the fourth bracket.
first bracket:
$13,600 x 10% = $ 1,360
second bracket:
($51,800 - $13,600) x 12% = $ 4,584
third bracket
($79,280 - $51,800) x 22% = $ 6,045.6
total tax income: 11,989.6
