Answer:
one 18" pizza contains more pizza than 2 12" pizzas
Explanation:
area of 12" pizza:
A = πr²
A = (3.14159)(6 in.)²
A = 113 in.²
two 12" pizzas have a total area of 226 in.²
area of 18" pizza:
A = πr²
A = (3.14159)(9 in.)²
A = 254 in.²
one 18" pizzas has a total area of 254 in.²
P.S. This problem is poorly worded. Above it states "... want to make sure I get the most pizza for my money." Since there is no indication of price for either option, two 12-inch pizzas or one 18-inch pizza, we cannot calculate what the most pizza for the money is. Below it states "which option should I choose to get the most pizza?" Here it no longer asks for most pizza for the money. Now it just asks for which option gives the most pizza.