PLEASE HELP!! There are 64 passengers on a morning bus. Of these passengers, 35 need transfers and 39 are going to work. There are 12 passengers who do not need transfers and are not on their way to work. a) the number of passengers that need transfers but aren’t going to work is

b) the number of passengers that are going to work but do not need transfers is

(If you could show me how yo got to your answer that would help a lot cheers)