Each of their entrees cost $20.00 so they cost 2*20 = $40.00
The appetizer was $9.00, the main meal was $40.00 and the dessert was $11.00 for a total of $<<9+40+11=60>>60.00
The entire meal cost $60.00 and they left a 30% tip which came to 60*.30 = $18.00
The meal was $60.00 and the tip was $18.00 so the total bill came to 60+18 = $<<60+18=78.00>>78.00
#### 78