15% of 40 = 6 so I’m guessing it would be 6
Answer is 187.06 and the work is in the attached picture.
Here's how to calculate the mean absolute deviation. Step 2: Calculate how far away each data point is from the mean using positive distances. These are called absolute deviations. Step 4: Divide the sum by the number of data points.
I hope this helps you
-7.x^3=2.7.9
x^3=-18
x=i.(3square root of 18)