Express 4 8\9 as an improper fraction

The graph of a function f(x)=(x+2)(x-4). which describes all of the values for which the graph is negative and increasing? all real values of x where x< -2 all real values of x where -2

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g

Write as a product: ac^2–ad+c^3–cd–bc^2+bd