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Sale Price = $150.

Discount percent = 25%.

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$\"\"$ (Substitute 150 for Sale price and 25% for Discount Percent)

$\"\"$ (Subtract percents)

$\"\"$ (Write 75% as a decimal)

$\"\"$ (Divide each side by 0.75) \ \

$\"\"$ (Cancel common terms) \ \

$\"\"$ (Divide: $\"\"$ ) $\"\"$

The Original price is $200.