Sara made pumpkin pies for a school fundraiser. she had 64 total pieces of pie to sell. by noon she had sold 25% of her pies. how many pieces did she sell?

Sara sold 16 pieces of pie because 25% of 64 is 16.

Sara sold 16 pieces of pumpkin pie.
     
  
Step 1:               is         %           x          25
                           =  ⇒ =  
                           of       100         16       100

Step 2: Cross Multiplication

100(x) = 64(25)
100x = 1,600

x = 16