Macy's is selling shirts that have been reduced to $6.  This price is at 25% of the original price.  What was the original price?
The original price is x.
The discount is 100% - 25% remaining = 75% discount.
The discount is 75%, so the original price is x - .75x = .25x.
The sale price is $6, so $6 = .25x, which is the same as 6/.25 = x.
X = $
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