#7: Sam biked at a constant speed along the bike trail. The graph below shows Sam's distance over time. Find the rate of change."

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%

the answer is

a.

x = 42

y = 10

i got it down chief.