Determine the average rate of change of the function on the given interval. Express your answer in exact simplest form. Find the average rate of function for all 3 of them. Plz help n(x)= √x+2

a. [2,7]

b. [7,14]

C. [14,23]

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%