17. Priscilla has made up her own method of rounding. Starting at the right-most place in a decimal number, she keeps rounding to the value of the next place to the left until she reaches the place to which the decimal number was rounded. Try her method with the number 3.2716. Then, try with your own examples. Is her method valid ? (Does it always round the decimal numbers correctly ?) If so, explain why. if not provide a counterexample