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14) a bag contains tickets numbered
0-9. one at a time, you pick 4
tickets without returning the
tickets to the bag. to create a
password, you write down each
number in the order picked.
- 10 tickets

Little’s law firm has just one lawyer. customers arrive randomly at an average rate of 6 per 8 hour workday. service times have a mean of 50 minutes and a standard deviation of 20 minutes. how long does a customer spend at little’s law firm on average?

Two customers went to a post office. first customer paid $12 for 14 and 5 envelopes the second paid 24.80 for 10 postcards and 15 envelopes. what is cost of each envelope?

How many grams the dog will eat in 3 days?