If a book originally cost $40 and is now on sale for 20% off, what is the new price of the book? Given:The original price of the book is $40.The book is on sale for 20% off.Find:The new price of the book after the 20% discount = ? … If a book originally cost $40 and is now on sale for 20% off, what is the new price of the book?Read More » If a book originally cost $40 and is now on sale for 20% off, what is the new price of the book? Read More »