Question 203578
since the amount of pizza (area) is proportional to the SQUARE of the diameter
___ the 12" pizza is 1.44 times (144/100) as large as the 10" pizza


since the price is  about 1.2 times (5.99/4.99) as much, the larger pizza is a better buy
___ and it costs less per person -- $1.50 vs $1.67


MORE pizza ... LESS cost ... WHAT A DEAL!!!