Several national retailers are offering Pi Day discounts and special deals on March 14 to celebrate the mathematical holiday.
Royal Perks members can get a free slice of Hershey’s pie on Pi Day when they spend more than $3.14.
Pi Day is an annual national celebration of the mathematical concept, which is the ratio of a circle’s circumference to its ...
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Sure, it's a nod to 3.14, the never-ending number that describes a circle's circumference, but the reason people show up for ...
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