Hello I know this may be difficult on your end but you don’t always have to get the answer from someone you can contact a teacher and get help this keep be very helpful keep this in your head you are intelligent no matter what anyone tells you ask your teacher a question about the problem tell them you don’t get how to do it if you have to just whatever it takes for you to learn how to do it have a wonderful day or night bye!
I think it would have to be -15 because the leaves are 5 each the caterpillar is 3 each and the apples are 10 each so you would subtract 5 and 10 to get -5 then multiply by 3 to get -15.