Please help! the other 2 are always, sometimes, or never!

Sometimes. All we need to know is if one pair of sides are the same length between the triangles, and that is enough info to know if triangle ABC = triangle DEF. We don't have any such info, so we just say "sometimes" to account for this situation. 60 degrees. Angle B = angle E, and we're told that B = 60, so E must be 60 as well for the two angles to be congruent. Always. Equilateral triangles have the same angle measure (60 degrees each). Any two triangles with corresponding congruent angles are similar triangles.

I’m not absolutely sure but i think it’s 7x6x5x4x3x2=5040 because as the first character you can take any of the 7 given then you are left with 5 then 6 then 4 etc.