What are the solutions of the following system? [x2 + y2 = 25
2x+y=-5
O (0,-5) and (-5,5)
0 (0,-5) and (5, -15)
O (0,-5) and (-4,3)
(0, -5) and (4, -13)

Given right triangle a w/a hypotenuse length of x+4 and a leg of x, and right triangle b, w/ a hypotense length of 3y and a leg length of y+4 for what values of x and y are the triangles congruent by hl?