Question: Use the formula for the area of a circle, A=3.14rsq, to determine which is a better deal: a 14-in. pizza for $10.50 or a 16-in. pizza for $11.95. Using 3.14 for pi

Hi Kristine,

Use the area expression that you have and calculate the area of each of the pizzas in square inches. Use these numbers to determine the price in dollars per square inch for each pizza to see which is cheaper.

Penny