Will give brainliest if right, can someone help me with my math homework?

After t seconds, a ball tossed in the air from the ground level reaches a height of h feet given by the equation h = 144t-16t^2. after how many seconds will the ball hit the ground before rebounding?

5. (03.02)if g(x) = x2 + 3, find g(4). (2 points)1619811

Select the conic section that represents the equation. 3x2 + 3y2 -2x + 4 = 0