Marta uses the expression $92 - 0.12($92) to find the sale price of an item and gets the answer $78.20. show how to find an underestimate and an overestimate to explain why her answer is reasonable

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?