You write like that that's how I do it
Since you don't provide the coordinates of the point W, I will help you in a general form anyway. In the Figure below is represented the segment that matches this problem. We have two endpoints U and V. So, by using the midpoint formula we may solve this problem:

Therefore:

So we know
but we also must know 
Finally, knowing the points U and W we can find the endpoint V.
Answer:
X+Y is greater then or equal to 8
Step-by-step explanation:
In total she wants to sell <u>at le</u><u>ast</u> 8 items which implies shes willing to sell more (so greater or equal to) then it's adding X+Y bc those are the items that she is selling
6 (7x - 3)
You have to factor 6 out of 42x - 18.
Hope this Helps!!
7 . 3
--- × ------
10. . 6
= 21
--------
60
= 7/20