Do you know the answers

Which matrix can be multiplied to the left of a vector matrix to get a new vector matrix ?

The function h (t) = -16t squared + 28t + 500 represents the height of a rock t seconds after it's propelled by a slingshot what does h (3.2) represent?

New york is the 27th largest state in the united states.what percent of the 50 states in the us are larger than new york