A park has 8 trees. One of those trees is a pine tree. What fraction of the trees are pine trees?

1/2
1/3
1/8
1/6

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?