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March 14 is Pi Day, and that means free and discounted pies of all sorts. Dmytro Zinkevych / Shutterstock.com
You don’t have to love math to love Pi Day. March 14, also written as 3/14, honors pi, the mathematical constant usually written as 3.14 that designates the ratio of a circle’s circumference to its diameter. However, it’s also a day to subtract from your food bill. On Pi Day, several restaurant chains offer deals or freebies. Typically, these “Pi Day” deals are good for pizza pies…