How to solve the problem or at least me with setting up the problem.

okay you're going to take $1,500 dollars and times it by 0.10 to get how much was taken from her salary. 1500x0.10= 150.

Next you will take the amount you get and subtract it from $1,500. 1500-150=1350

After you get your answer you will take your new answer of 1350 and find what 20% is of that answer. 1350x0.20=270
1350+270=1620

You will then add 270 to her salary and that will be you answer. 1620