Answer:
a) 6.1 feet
b) 12.6 feet
Step-by-step explanation:
Using trigonometric ratios we know that:

AKA SohCahToa.
To find the height, we will use sine.

To find the length we will use cosine.

i think the answer is 76.68
Not all of the student body would have responded therefore her conclusion was incorrect, could be changed to be right by saying 90% of people who responded to a survey said the school colours should be changed.
It would be 6/20 = $0.30
30 cents or $ 0.30