The graph models the height h, in meters, of a hot air balloon, t minutes after beginning to descend. How high was the balloon when it began its descent?

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%

i'm assuming that it's c.)   volcanoes built the mountains and earthquakes tore them down.