21, 42, 63, 84.
21,42,63,84
21,42,63,84
21: 21, 42, 63, and 84!
21, 42, 63, 84.
21, 42, 63, 84
63
Just 63.
Just 63.
They are: 21, 42, 63 and 84
itzz 63
Just 63.
I don't know! Why are you asking me? Ask your teacher and He or she will tell you the answer!