Isosceles triangle
so
x + 8 = 2x -1
x = 9
BC = 3x - 3
BC = 3(9) - 3
BC = 27 - 3
BC = 24
I don't know about the first one but for the second one:

Answer:
250
Step-by-step explanation:
40%= 100
10%=25
100%= 250
Answer:
the answer is b because it justifies why the theory of evolution is a theory not a law.