What is the maximum number of pieces of birthday cake of size 3” by 3” that can be cut from a cake 21” by 21”?	Answers
A) 5  B) 7  C) 49  D) 20  E) 25

Rationale: "the prompt is essentially asking for the maximum number of 3 x 3 squares that can be cut from a larger 21 by 21 square . since each ' row ' and each ' column ' of the larger square can be sub - divided into 7 ' pieces ' each , we have ( 7 ) ( 7 ) = 49 total smaller squares ( at maximum ) . c"
Answer: C