Your friend competes in a high jump competition at a track meet. the function h=-16t+18t models height h(in feet ) of your friend after t seconds. after how many seconds is your friend at a height of 4 feet? after how many seconds does your friend land on the ground?

f . i can go whenever i feel like it bc it is confidential meaning only i would know how much i deposited besides the bank and they wouldnt care bc when you make a deposit you are using their services which means they are using there competition and gaining more customers

and if they dont well then thats less customers for them in a less profitable way

plz mark brainliest