2.769 times to the negative third power equals .002769 true or false

Given: hf || jk; hg ? jg prove: fhg ? kjg to prove that the triangles are congruent by asa, which statement and reason could be used as part of the proof? fgh ? kgj because vertical angles are congruent. jkg ? hfg because vertical angles are congruent. fhg ? jkg because right angles are congruent. hfg ? kjg because alternate interior angles are congruent.

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

Don't know how to find x given these segment lengths