Answer:
C
Step-by-step explanation:
Area of a square equals to the square of its side, therefor the side of a given area for a square is the square root of the area.
![A = a^{2}\\a = \sqrt{A}\\a = \sqrt{110} = 10.48 ft](https://tex.z-dn.net/?f=A%20%3D%20a%5E%7B2%7D%5C%5Ca%20%3D%20%5Csqrt%7BA%7D%5C%5Ca%20%3D%20%5Csqrt%7B110%7D%20%3D%2010.48%20ft)
Answer:
3 pounds
Step-by-step explanation:
The calculated average of a data set best describes A: Mean.
108=2x-4(2x-9)
108=2x-8x+36
108=-6x+36
-36 -36
72=-6x
72/-6=-6x/-6
-12=x
297/11 = 27
So we have 27 groups of 11 students. If there are 2 chaperones for every 11 students, then we can do:
27x2=54
There are 54 chaperones on the field trip.