Thought I already answered this. I must have forgotten to click "add your answer."
We have similar triangle trianges ABC ~ ADE so
BC:AB = DE:AD
BC:2 = 10 : (2+3) = 10:5 = 2:1
So BC=4 because 4:2 = 2:1
Choice C.
Answer:
Start
Percentage with triazine resistance- 57.6%
Percentage without triazine resistance- 42.4%
End
Percentage with triazine resistance- 78%
Percentage without triazine resistance- 22%
Step-by-step explanation: