I got c, but it could be wrong
<em><u>It's 30</u></em>
<em>Hope that helped!</em>
The 1:3 ratio means that the distance from A to the point is 1/4 of the distance from A to B.
The difference of y-coordinates is 10-8 = 2. 1/4 of that is 2·1/4 = 1/2, so the point of interest will have y-coordinate 8 + 1/2 = 8 1/2. This apparently corresponds to the first selection:
... (6 1/2, 8 1/2)
Answer:

Step-by-step explanation:
Given


Required

This is calculated as the number of women divided by the population of the class
i.e.

So, we have:


2x squared +1 - 7x squared +3