Answer:
87.88 ft
Step-by-step explanation:
Base x height divided by 2
16.9 ft x 10.4 ft divided by 2 = 87.88 ft
hope this helps:)
I need more info please!!
Solution: We are given below data:

Now to find the mean deviation, we use the below formula:

Where:
represents the summation
X, represents the observation.
represents the mean
N represents the number of observation.


Therefore, the mean deviation is:

= 4
A good way of doing this problem would be to use cross multiplication of ratios
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Then cross multiply
(10 girls)(270 students)=(X girls)(18 students)
2700=18x
150=x