after taking 25% discount the original price let us say x is now \(0.75x = 180\) or, \(x = 240\)

Let x = the original price (BEFORE the discount)

If Sue received a 25% discount, then she paid 75% of the original price.
In other words, she paid 75% of x
We're told she paid $180, so we can write: 75% of x = $180
Or we can write: 0.75x = 180
Solve: x = 180/0.75 = $240

Answer: D

Cheers,
Brent

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