What do i do here Constructing an Altitude and Median of a Triangle

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

5. (03.02)if g(x) = x2 + 3, find g(4). (2 points)1619811

Mrs. blake's bill at a restaurant is $42.75. she wants to leave the waiter an 18% tip. how much will she pay in all, including the tip?