Graciella is planning to give away half of her books. She currently has 28 hardcover books and 19 paperback books. Which of the
following equations can be used to find b, the number of books Graciella will give away? A. b=(28+19) multiplied by 2
B. b=(28+19) divided by 2
C. b=(28+19) divided by 1/2
D. b= 28+19 divided by 2
, we have
to be continuous at 
, we require that the limit as 
is equal to 4.
