so... she was making $1,500, then her salary got slashed by 10% of that
find how much 10% of 1,500 is, the subtract "that amount" from 1,500
and that's what she's makes now
then later one, whatever that is, gets bumped by 20%
find 20% of that amount you found, and add it to it
[tex]{{ a}}\%\ of\ b \implies \cfrac{{{ a}}}{100}\cdot b\implies {{ a}}\div 100\cdot b\qquad thus
\\ \quad \\
{{ 10}}\%\ of\ 1,500 \implies \cfrac{{{ 10}}}{100}\cdot 1,500\implies {{ 10}}\div 100\cdot 1,500[/tex]
