1) An office building contains 27 floors and has 37 offices on each floor. How many offices are there in the building? (2 points) 2) How many different three-letter initials with none of the letters repeating can people have? (3 points) 3) In how many different ways can five runners finish if no ties are allowed? (2 points) 4) What is the probability that a card selected at random from a standard deck of 52 cards is ar ace or a heart? (3 points)