Mark earned $45.30 for each lawn he moves and $35.85 for each pile of leaves he rakes. Last
week, he mowed 5 lawns and raked 3 piles of
leaves, and he also spent $23.45 on snacks at
7-Eleven. He wants to divide the money he has
leftover amongst his siblings. If he gives each
sibling $77.65, how many siblings does he have?