B. 11.33 is closer to the area of a circle with a radius of 2.1
16,500
60 minutes in an hour / 12 minutes = 5
5 * 3,300 = 16,500
I don't know if it could be the area of a square but x has to be 8.34. (ROUNDED)
Equate real part and imaginary part:
LHS:
real part -- 12
imaginary part -- 5y
RHS:
real part = 4x
imaginary part = 25
Equating::
12 = 4x
x = 12/4
x = 3
Again:
5y = 25
y = 25/5
y = 5
So,
x = 3
y = 5
<em><u>The average would be 16.</u></em>
To calculate this, add all the values together then divide that sum by the amount of data values.
11+16+15+22=64
64÷4=16