Answer:
See explanation
Step-by-step explanation:
Consider the natural number 
If
is the natural number, then
are next two natural numbers, so numbers
and
are three consecutive numbers.
Given three consecutive natural numbers, one of them is always even number and one of them is always multiple of 3, so the product

is divisible by 6.
Since the y coordinate is the same for both points we only need to know the change in the x coordinates to find the distance between these two points.
5--12=17
So these two points are 17 units apart.
You just need to plot them on a graph and see how many spaces are in between each. So if you plot (1,9) remember it's X, Y axis. Start from zero on the graph. Since it's positive go over 1 to the right and up 9. Then do the same for the rest. Then count how many units are between each point on the graph and find the one that is 5 units apart.
The answer is given by the
second choice: letter B. 14.75 is the answer because to get the mean, you
should add all the numbers and then divide it by how many numbers there are.
For example, in this case, you add 12, 17, 16, 10, 20, 13, 14, 14, 12, 12, 19,
18 to each other. You will get the answer 172. After that, you should
divide 172 by 12 because there are 12 numbers in the data set.