The following equation shows the height h in meters above the ground of a football t in seconds after a particular kick h=0.3+5.5t-4.9t^2 what was the height of the football at the moment of the kick?

Due to a packaging error, 4 cans labeled diet soda were accidentally filled with regular soda and placed in a 12 pack carton of diet soda. two cans were randomly selected from this 12 pack. what is the probability that both cans were regular soda?