Answer: The new price of the book = $14.04
Step-by-step explanation:
We are given that, the original price of book = $19.50
Price marked down by 28 percent, that means the original price of the book was decreased by 28%.
Also, 28%= 0.28 [we divide % by 100 to convert it into decimal]
Then , the new price is given by :-
New price = (Original price) - ( Marked down percentage) x (Original price)
= ($19.50)- (0.28) ($19.50)
= ($19.50)(1-0.28)
= ($19.50) (0.72)
= $14.04
Therefore , the new price of the book = $14.04
