Final answer:
Andrew, Maria, and Joey would have saved $12.01 if they bought a gourmet frozen pizza and a 2-liter bottle of Coke instead of a large pepperoni pizza and 3 cokes.
Step-by-step explanation:
We need to calculate the cost difference between the two options to calculate how much Andrew, Maria, and Joey would have saved if they bought a gourmet frozen pizza and a 2-liter bottle of Coke instead of a large pepperoni pizza and 3 cokes.
The cost of the large pepperoni pizza and 3 cokes is $20.00.
The cost of the gourmet frozen pizza is $7.00, and the 2-liter bottle of Coke costs $0.99. So, the total cost of the supermarket option would be $7.00 + $0.99 = $7.99.
To calculate the savings, we subtract the total cost of the supermarket option from the total cost of the restaurant option: $20.00 - $7.99 = $12.01.
Therefore, Andrew, Maria, and Joey would have saved $12.01 if they bought the supermarket option instead of the restaurant option.