someone help and PLEASE make sure it’s right plz

The height of a flare fired from the deck of a ship in distress can be modeled by h(t)= -2(8t^2-52t-28), where h is the height of the flare above water and t is the time in seconds. a. find the time it takes the flare to hit the water.

This is about circle theorems. someone asap : (

The graph of y=x3 is transformed as shown in the graph below. which equation represents the transformed function?