I need lots and lots of help with this. plz make an explanation for this

22

Step-by-step explanation:

So we start with 15 pizza's, after the party 1.5 of the pizza is left which is 3 pizza's, dog ate 25% of the 3 remaining pizza's and we know that each pizza had 12 slices so 36 slices were remaining when the dog found the pizza and 25% of 36 is 9 so we take 36-9=27 then Jill eats 5 slices,  so now we have 22 slices remaining so she threw away 22 slices.

lol, i have been using this product for a while and the second half of the year for a lon and the first time in a long time ago that the government has not yet received enough votes to be a good the first place in the world to be able to do it in my world life, i