What does the transformation f(x) - f(-x) do to the graph of f(x)?

If g(x) is an odd function, which function must be an even function?

What is the value of x in the equation 2(x-4) = 4(2x + 1)?

Atheater wants to build movable steps that they can use to go on and off the stage. they want the steps to have enough space inside so they can also be used to store props. how much space is inside the steps?