Although the graph is not given in the option, so I would consider it from a different graph with the same question. The graph that represents the area of each rectangle in terms of the change in the length and width is the one with coordinate points located on the grid. The coordinate points on the form of (x,y) are represented as:
1. (0,40)
2. (1,45)
3. (2,47)
4. (8,25)
Hence,The graph with these coordinate points will be representing the situation.
Answer:
1/3 (A)
Step-by-step explanation:
We take
and we combine them together. It leaves us with:
Now, we must solve for what we have by multiplying both the top and bottom of our fraction and that leaves us with:

And now, we simplify that into our answer: 
If you have a rombus for example lets say the obtuse is 180 and the acute is 30 so the opposite angel of both is what the other is if that makes any sence
We know that
in the triangle QRS
tan Q=RS/SQ
in the triangle XYZ
tan X=YZ/ZX---------> tan X=9/12------> tan X=3/4
so
<span>∆qrs ~ ∆Xyz
</span>tan Q=tan X----------> tan Q=3/4
the answer is
tan Q=3/4