From this picture you can calculate coordinates of triangles' vertices:

.
Since
you can conclude that points A, B, C are rotated by

about the point (-0.5,0) to form points J, G, H, respectively.
Answer: A is correct choice.
X=25 and y=-2 so then y=-40 and x=? you will have to divide and and multiple and the answer will be x=500
Answer:
342.8
Step-by-step explanation:
There are many shapes of a star. It depends on the shape of the star. If you’re referring to this star, then the number of triangles is 5.
Hope this answers your question!