The height, h, of a falling object t seconds after it is dropped from a platform 300 feet above the ground is modeled by the function h (t) = 300 minus 16 t squared. Which expression could be used to determine the average rate at which the object falls during the first 3 seconds of its fall?

Can you me with this question? i'll reward *30 points i just need with this one question so that i could solve the others. * edit: i originally set up the question to reward 30 points, but for some reason i can only reward 15. if you don't get 30, then i'm sorry. i'm still kind of new to this site