PLEASE HELP!

To hit a ball over a tree a golfer hits the ball with a path that is modeled by h=-16t^2+80t where (h) is the height in meters and (t) is the time in seconds. Determine
Part A: The height of the ball after 1 second

Part B: The time it takes the ball to reach the maximum height

Part C: The Maximum height of the ball

Part D: The time it takes for the ball to return to the ground.

Three friends went on a road trip from phoenix, az, to san diego, ca. mark drove 50 percent of the distance. jason drove 1/8 of the distance. andy drove the remainder of the distance. 1. andy thinks he drove 1/4 of the distance from phoenix, az, to san diego, ca. is andy correct? 2. the distance from phoenix, az, to san diego, ca, is 360 miles. how many miles did each person drive? 3. solve the problem. what is the answer in total?

Ablue whale traveled 3112 miles in 214hours. what was the whale's rate in yards per hour? (1 mile = 1,760 yards)

Acompany makes steel lids that have a diameter of 13 inches. what is the area of each lid? round your answer to the nearest hundredth