To answer the questions we put in an initial y position of 30, an initial velocity of 10m/s at 45 degrees an a gravitational force of 9.8N at -90 degrees. Then shift to the time plot view. Set the observation time limit so as to quit looking when the ball hits the ground, about 3.28 seconds.
The answers to all the questions may be read directly from the plot. By placing the cursor at the peak of the y position curve you may read the maximum height. I get 32.5m as the upper vertical limit on the plot. By placing the cursor at the right end of the the x line you may read off the distance from the building to the impact point (23.3m). An elevation of 45 degrees means that the x and y positions are equal, which happens where the x and y plot lines cross. Using the cursor you can find that time to be about 2.45s.