Huey's Hip Pizza sells two sizes of square pizzas: a small pizza that measures 6 inches on a side and costs $10, and a large pizza that measures 9 inches on a side and costs $20. If two friends go to Huey's with $30 apiece, how many more square inches of pizza can they buy if they pool their money than if they each purchase pizza alone? Choices: A) 9 square inches B) 10 square inches C) 15 square inches D) 25 square inches E) 350 square inches
In the first case each can buy one pizza of $10 and one pizza of $20.   In square inches that would be (6*6=36) for the small pizza and (9*9=81) for the large pizza. In total sq inches that would be  (36+81)*2= 
<gadget id="calculator"> (36+81)*2</gadget>
<output>234</output>
234 sq inches.   In the second case if they pool their money together they can buy 3 large pizzas. In terms of square inches that would be   3*81= 
<gadget id="calculator">  3*81</gadget>
<output>243</output>
243 sq inches.   Hence, the difference is 9 square inches more (243-234).   The correct answer is 9 square inches
<result>A</result>
Huey's Hip Pizza sells two sizes of square pizzas: a small pizza that measures 6 inches on a side and costs $10, and a large pizza that measures 9 inches on a side and costs $20. If two friends go to Huey's with $30 apiece, how many more square inches of pizza can they buy if they pool their money than if they each purchase pizza alone?