answer all of the following questions

21-25. Problem Solving. Solve the problem and indicate the proper unit on your final answer. Round off your final answer to two (2) decimal places. A stone is thrown vertically upward from the top of a building. If the equation of the motion of the stone is s = -5t? + 30t + 200, where s is the directed distance from the ground in meters and t is in seconds, a. what is the height of the building? b. what is the average velocity on the time interval [1, 3]? c. what is the instantaneous velocity at time t = 1? d. at what time will the stone hit the ground? e. what is the instantaneous velocity of the stone upon impact