Can you guys plz help
give the right answer because im taking a test

Evaluate 4 a for a = 5 2/3 . express your answer in simplest form.

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.

Which graph has a rate of change of zero