Just help. Also this question is related to question 5 so if you can do this one please help me with question 5

55

Step-by-step explanation:

5th step = 15 timbers

6th step = 21 timbers

7th step = 28 timbers

8th step = 36 timbers

9th step = 45 timbers

10th step = 55 timbers

Hope this helps!!

Let me know if I'm wrong...

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.

the correct answer is d

hope this