I’m generally not sure about how to solve this. I have more questions posted like this one if you would like to help! If anyone see’s this and would like to answer, please do as fast as possible.

Answer:
Below.
Step-by-step explanation:
First a reflection over the y-axis takes:
The point A (2, 0) to (-2, 0).
B goes to (-4,2) and C goes to (-6,0).
Then the rotation moves:
(-2,0) to A' (0, -2)
(-4, 2) to B' (-2, -4)
(-6,0) to C' (0, -6)