To answer this you first need to find out how much ONE Pizza will cost. To do this divide the cost of 12 pizzas (9.56) by 12:
9.56/12 = 0.797
So if 0.797 is the cost of ONE pizza, if you multiply this by 14 this will give you the cost of 14 pizzas:
0.797*14= 11.158
AnswerThe above answer shows one of WA's biggest problems--the inability to put punctuation in questions. I am certain that if you could have punctuation, the question would have been "If a 12" pizza cost $9.56 how much would a 14" pizza cost?"
And the real answer is, we can't say.
Let's throw a few scenarios out here:
Scenario 1: Pizzas are priced by diameter. In this case, a 12" pizza costs 79.7 cents per inch of diameter, therefore a 14" pizza would cost $11.16. (Which is the answer our friend above gave us, of course.)
Scenario 2: Pizzas are priced by circumference. In this case, the 12" pizza (with a 37.68" circumference) costs 25.3 cents per inch, therefore the 14" pizza is $11.12. Not much different, but not exact.
Scenario 3: Pizzas are priced by area, which would make a 14" pizza cost $11.00.
Scenario 4: The pizzeria owner knows people who buy the 14" pizza normally don't eat it by themselves, and they don't just buy the pizza either...so to drive traffic to her restaurant where they buy salads, breadsticks and soft drinks she charges $9.95 for it.