Please help I’m giving twenty points for these answers.

Find percent notation for 0.008 0.008=

Solve each quadratic equation by factoring and using the zero product property. 14x - 49 = x^2

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?