Question in the picture this isn't all of it my mom is getting angry because of all my missing assignments any help is appreciated im not good at maths

  A, B

Step-by-step explanation:

The flag has 180° rotational symmetry, so rotation by that amount around the center will map either triangle to the other.

The legs of the triangles are different lengths, so no rotation of 90° or 270° can map one to the other.

The two choices shown below are applicable.

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.