Well for starters its 5 friends total and they EQUALLY SPLIT which means separate a bill that comes to $32.50, right, so this is key word for division so all we need to do is divide 5 by 32.50 and we receive our answer.
Answer: Each friend pays $6.50 and we know this is true because 32.50/5 = 6.5 and 6.5 * 5 = 32.50 so we know it checks back so its correct.