Let's begin by listing out the information given to us:
Pumpkin pie = $12.55
Diameter of pumpkin pie = 12 inches ⇒ r = 12/2 = 6inches
Pi = 3.14
We will solve using the area of a circle.
Area = πr²
A = 3.14 * 6² = 113.04 in²
The cost per square inch of the pie is given by:
=12.55 / 113.04 = 0.111
=$0.11 /in²
