Hi ok so i need to do this assignment quick if one of you could help me that is very much appreciated anyways: |a-b| - |c+d|, if a= -5; b=4; c=1 and d= -3
oh and there's this

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?