Answer:
They must meet at least three requirements like those in the explanation.
Step-by-step explanation:
-The other angles are also corresponding for example: B is congruent to E and C to F.
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Its sides are proportional to each other
-These two triangles can have the same shape no matter what size each one is
The domain of the function is possible values of independant varaible such that function is defined or have real values.
So the expression

is not defined for x = -6 and for x = 1, as expression becomes undefined for this values of x (Denominator becomes 0).
So answer is,

Option B is correct.
Answer:3(7)+2=23. 21+2=23
Step-by-step explanation:
if u look at it and and which ones have more then u will get ur answer