Can someone please answer all 3 highlighted in purple please

What is the first step of an indirect proof of a number that is divisible by two

What other information do you need to prove triangle dac=bca by asa

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.