The answer is D) because C) and B) are biased and would not be reasonable and A) has no guarantee of every third child being 12.
Since you have an angle and at least one side you can use either sine, cosine or tan. For this question, you would use sine like above. Hope this helps!
Answer:
the answers are a and d
Step-by-step explanation:
x+x+x=3x and you can't add a constant (2) to a variable(3x) so it would just be 3x+2
Answer: Ooh, okay. Have fun then I guess.