I Type the expression that results from the following series of steps:
Start with t times by 4 then subract 9

A20? -foot ladder is placed against a vertical wall of a? building, with the bottom of the ladder standing on level ground 19 feet from the base of the building. how high up the wall does the ladder? reach?

Given abcd ac=38 and ae=3x+4 find the value of x

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?