10 x 2 + 21x + 10 how do i factor this?

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.

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.

Def rotates 90 clockwise about point a to create d’ e’ f’. therefore, which equation must be true ?