Answer:
and 
Step-by-step explanation:
we know that
In the diagram
Triangles GRT and GEA are similar by AA Similarity Postulate
Remember that
If two figures are similar, then the ratio of its corresponding sides is proportional
so

we have




substitute

therefore


Whatt? the answer is 7z+84
there is not a single X in the equation i really dont know where you got the X
43-7= 36
Range is highest number minus smallest number
Greater
If we get common denominators
1/2=15/30
3/15=6/30
15>6 therefore 1/2>3/15
The third one is correct so it would be C.
Just substitute X and Y into the question.