Answer:
{x,y,z} = {-22/13,29/13,6/13}
There would be 1,320 different ways, just multiply all the possible front runners 12 second runners 11 and third runners 10, 12x11x10=1,320
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Answer:
-1 I think sorry if its wrong
Yes because a triangle doesn't have the same sizes and a right triangle should have a 90° angle to be a right triangle
