What you do is add up all the values, then divide by the number of values.

The average of the data is
4.8575.
I'm pretty sure the answer is -3
Answer:
Since g(f(x))=x g ( f ( x ) ) = x , f−1(x)=5x+2 f - 1 ( x ) = 5 x + 2 is the inverse of f(x)=5x−2 f ( x ) = 5 x - 2 .
Step-by-step explanation:
X2 - 12 = y, where x=the number of hours since 7 am, and y=the water level