Answer:b
Step-by-step explanation:
iys b i promise
Answer:
whats the question lol ?
Step-by-step explanation:
Answer:
1.953125 or 2, not sure if you need to round.
Since she has seven key the probability that the first one will open the door is

if it takes three attempts to open the door,the probability is

if the three attempts would not work
then the probability that the fourth attempt will open the door is

hope this helps
Answer:D:102
Step-by-step explanation: