What's the least common multiple (lcm) of 2, 6, and 8?
a. 12
b. 48
c. 2
d. 24

24

Step-by-step explanation:

2:2,4,6,8,10,12,14,16,18,20,22,24...

6:6,12,18,24...

8:8,16,24...

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.

cut 138 centimeters off

step-by-step explanation:

250-112 = 138