Find the answer to the math problem: Zach was a waiter in a fancy restaurant.  His last table for the night was a party for 4 people.  The mom ordered lobster for $25.50, the dad ordered steak for $35.00 their twin boys both ordered a cheeseburger and fries for $13.50 each.  They started their meal with an appetizer that cost 8.50.  Everyone also ordered a dessert that cost $6.00 each.  They wanted to give a 20% tip for Zach on the bill.  What did the final bill total come to?