Correlation coefficients range from - 1 to + 1 . Identify where the weaker and stronger correlations lie on the number line.

explanation:

step-by-step explanation:

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%

this is a good question! i'll do some research and come back when i have the answer!