Question 1033326
Let's try to calculate the number of cents per square inch for each to find the better buy...
For the 12 inch...its radius is 6 in...area = (pi)*6^2 = 113.1 sq in
So $9 = 900 cents...900/113.1 = 7.96 cents per sq in
For the 16 inch...its radius is 8 in...area = (pi)*8^2 = 201.1 sq in
So $14 = 1400 cents...1400/201.1 = 6.96 cents per sq in

Thus the larger pizza is the better buy since its cost is cheaper per square inch.