answer: expression= p+p*d%
price reduction + sale price = $625
sale price: $p+$p*d%
where d% is the percentage of discount
step-by-step explanation:
original price = p
price went down by $150 price reduction $p*d%
sale price= $ 475
therefore the price before sale is: $625
and the expression that shows the price before sale is: p+p*d%