Verified Answer :

He has enough bc if he has 7 friends and 4 subs and u multiply 4 times 2 bc there cut in half he's gonna have 8 pieces 7 for the friends and 1 for him

eXipes

If half of each sub is 1 serving, and he has 4 whole subs, then he would have 8 servings.... so he would be able to feed 7 friends and himself. I don't know if the final product is including him or not so if it is. then there are no subs left over, if it is not, then there is only 1/2 sub left

Thank You!