Ever since renata moved to her new home, she's been keeping track of the height of the tree outside her window. h represents the height of the tree (in centimeters), t years since renata moved in. h=210+33t how fast does the tree grow?

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