Two cranes are lifting building materials on top of a roof. Crane A lifts a steel
beam all the way to the top of the roof in 30 seconds, while crane B lifts an
identical beam three-quarters of the way up to the roof in 30 seconds too.
Which of the following statements is true?

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%