If two angles are complimentary then their sum would equal to 90 degree.
i.e., x + 3x + 30 = 90
4x = 90 - 30
x = 60 / 4
x = 15
In short, Your Answer would be Option A
Hope this helps!
300/60=5 so your answer is 5 hours
Answer:
C. The chance to be selected into the sample was the same for all veterinarians
