Consider a function that describes how a particular car's gas milage depends on it's speed. what would be an appropriate domain for this function?

What are the possible rational zeros of [tex]f(x) = x^4+2x^3-3x^2-4x+18[/tex]

Is ofat (-25, 0), (25, 0) co- (0, -15), (0, 15)?

Arace is 10 kilometers long. markers will be placed at the beginning and end of the race course and at each 500 meter mark. how many markers are needed to mark the course for the race?