Ascale has a percent error of 7%. the scale reads the mass of a book as 450 g. which statement describes what the actual mass of the book could be? the actual mass of the book is either 315 g or 585 g. the actual mass of the book is either 419 g or 482 g. the actual mass of the book is either 443 g or 457 g. the actual mass of the book is either 447 g or 453 g.