What’s the answer and what should i put in that complete box

I think it's the dividend which is what you're dividing in by the divisor in the first place.

what? ?

what type of question is thiss

step-by-step explanation:

  or  

step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or