The table in Part A represents y as a function of x. This means that the value of Y is dependent on the value of X. The table can be represented by an equation that describes the relation of X and Y:

or

By substituting any value of X, you get a specific value of Y based from the given relationship, thus Y is a function of X.
For Part B, the value of f(150) is $470 and it represents the total cost for borrowing a rowboat for 150 hours. By substituting the value of x = 150 into the function, you get the total cost:
<h2>ANSWER</h2>
addective inverse of 11/221 = -11/221
-<em>secret_angel</em>-
Answer: A. 0.4899 B. 14
Step-by-step explanation:
If X = random variable
then, the standard deviation of the sampling distribution of X = 
A.
GIven: 
The standard deviation of the sampling distribution of X = 
B. Let n be the sample size,

Hence, the required sample size = 14