Answer:
If an event is affected by previous events then it is a dependent event, while if an event is not affected by the previous event then it is an independent event.
Since we have replaced the card that we first drew from the deck, it wont affect the event of pulling a card second time.
So, we can say that it is an example of independent event.
X= 60
The triangle it is in is equilateral (as shown by the lines through the lines) and equilateral triangles have angles of 60.
Hope this helps :)
Go with you answer on the paper