What is the answer if she has 13.59 and went to the store and bought a hat for 5.67 ad a shirt for 4.56

Assuming you're wondering how much money is left?

You can add the price of a shirt and the price of a hat together, and subtract it by the amount she had to begin with:

5.67 + 4.56 = 10.23

Subtract:

13.59 - 10.23 = 3.36 dollars left.