License plates are made using 3 letters followed by 3 digits. how many plates can be made if repetition of letters and digits is allowed? a) 17, 576,000 b) 1, 757, 600 c) 1,000,000 d) 308, 915, 776 there are 10 members on a board of directors. if they must form a subcommittee of 6 members how many different subcommittees are possible? a) 151, 200 b) 210 c) 720 d) 1,000,000 how many ways can an irs auditor select 3 of 13 tax returns for an audit? a) 2197 b) 1716 c) 6 d) 286 a bag contains 6 cherry, 3 orange, and 2 lemon candies. you reach in and take 3 pieces of candy at random. find the probability. all cherry a).3636 b) 1212 c) 7272 d) 1091

Quick! a survey of 57 customers was taken at a bookstore regarding the types of books purchased. the survey found that 33 customers purchased mysteries, 25 purchased science fiction, 18 purchased romance novels, 12 purchased mysteries and science fiction, 9 purchased mysteries and romance novels, 6 purchased science fiction and romance novels, and 2 purchased all three types of books. a) how many of the customers surveyed purchased only mysteries? b) how many purchased mysteries and science fiction, but not romance novels? c) how many purchased mysteries or science fiction? d) how many purchased mysteries or science fiction, but not romance novels? e) how many purchased exactly two types of books?