Notice and Wonder: Two Sets of Equations What do you notice? What do you wonder?
Set 1:
Set
f(x) = x² + 4x
g(x) = x(x +4)
h(x) = (x+2)² - 4

Two friends are reading books. jimmy reads a book with 21,356 words. his friend bob reads a book with one-and-a-half times as many words. which expression represents the number of words bob reads?