We need to know how much tax she must pay based on her taxable income , Since un the table it states that taxable incomes that range between $0-$132000have a tax rate of 18% of each $1 . We already know her taxable income that is = 129000, which ranges between 0 and 132000. Hence we know how much tax she must pay . First , we need to calculate how much 18% of $1 is = 18/100 x 1 = $0.18 Per annum/year = $0.18 x $129,000 = $23,220